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There are 11 children in a room. Six of the children are girls. What fraction of the children are girls? In mathematics, a fraction is a number that represents a part of a whole. It consists of a numerator and a denominator. The numerator represents the number of equal parts of a whole, while the denominator is the total number of parts that make up said whole. For example, in the fraction of 3 However, this was one of the easiest examples of adding fractions. The process may become slightly more difficult if we face a situation when the denominators of the fractions involved in the calculation are different. Nonetheless, there is a rule that allows us to carry out this type of calculation effectively. Remember the first thing: when adding fractions, the denominators must always be the same, or, to put it in mathematicians' language, the fractions should have a common denominator. To do that, we need to look at the denominator that we have. Here is an example: 2⁄3 + 3⁄5. So, we do not have a common denominator yet. Therefore, we use the multiplication table to find the number that is the product of the multiplication of 5 by 3. This is 15. So, the common denominator for this fraction will be 15. However, this is not the end. If we divide 15 by 3, we get 5. So, now we need to multiply the first fraction's numerator by 5, which gives us 10 (2 x 5). Also, we multiply the second fraction's numerator by 3 because 15⁄5 = 3. We get 9 (3 x 3 = 9). Now we can input all these numbers into the expression: 10⁄15 + 9⁄15 = 19⁄15. If there are seven apples and five oranges in the basket, what fraction of oranges are in the fruit basket? In everyday language, we can simply say that a fraction is how many parts of a certain size there are, like one eight-fifths. Simple Methods of Calculating Fractions Simple addition of fractions

For example, to square -4 enter it into the calculator as (-4) with parentheses. To take the negative of 4 squared enter it as -(4) or -4.This is a bit more of a complicated case – to add these fractions, you need to find the common denominator. Proper fraction button is used to change a number of the form of 9/5 to the form of 1 4/5. A proper fraction is a fraction where the numerator (top number) is less than the denominator (bottom number). When an exponent expression is written with a positive value such a 4² it is easy for most anyone to understand this means 4 × 4 = 16 Converting from decimals to fractions is straightforward. It does, however, require the understanding that each decimal place to the right of the decimal point represents a power of 10; the first decimal place being 10 1, the second 10 2, the third 10 3, and so on. Simply determine what power of 10 the decimal extends to, use that power of 10 as the denominator, enter each number to the right of the decimal point as the numerator, and simplify. For example, looking at the number 0.1234, the number 4 is in the fourth decimal place, which constitutes 10 4, or 10,000. This would make the fraction 1234

Decimals (decimal numbers) enter with a decimal point . and they are automatically converted to fractions - i.e. 1.45. You can use, for example, LCM – the least common multiple to find the common number of your two denominators: LCM(5,10) = 10 Another option is to multiply your denominators and reduce the fraction later.This is the most straightforward case; all you need to do is to add numerators (top numbers) together and leave the denominator as is, e.g.: An alternative method for finding a common denominator is to determine the least common multiple (LCM) for the denominators, then add or subtract the numerators as one would an integer. Using the least common multiple can be more efficient and is more likely to result in a fraction in simplified form. In the example above, the denominators were 4, 6, and 2. The least common multiple is the first shared multiple of these three numbers. Multiples of 2: 2, 4, 6, 8 10, 12 Rules for expressions with fractions: Fractions - use a forward slash to divide the numerator by the denominator, i.e., for five-hundredths, enter 5/100. If you use mixed numbers, leave a space between the whole and fraction parts. When subtracting fractions with unlike denominators – 2/ 5 and 3/ 10 – repeat the procedure from the previous section, but subtracting, not adding in the final step:

A number n squared is written as n² and n² = n × n. If n is an integer then n² is a perfect square. Proper fraction button and Improper fraction button work as pair. When you choose the one the other is switched off.A company has 860 employees, of which 500 are female. Write a fraction to represent the female employees in the company. There are 18 students in Jacob's homeroom. Six students bring their lunch to school. The rest eat lunch in the cafeteria. In the simplest form, what fraction of students eat lunch in the cafeteria? However, this was one of the easiest examples of subtracting fractions. The process may become slightly more difficult if we face a situation when the denominators of the fractions involved in the calculation are different. Nonetheless, there is a rule that allows us to carry out this type of calculation effectively. Remember the first thing: when subtracting fractions, the denominators must always be the same, or, to put it in mathematicians' language, the fractions should have a common denominator. To do that, we need to look at the denominators that we have. Here is an example: 2⁄3 - 3⁄5. So, we do not have a common denominator yet. Therefore, we use the multiplication table to find the number that is the product of the multiplication of 5 by 3. This is 15. So, the common denominator for these fractions will be 15. However, this is not the end. If we divide 15 by 3, we get 5. So, now we need to multiply the first fraction's numerator by 5 which gives us 10 (2 x 5 = 10). Also, we multiply the second fraction's numerator by 3 because 15⁄5 = 3. We get 9 (3 x 3 = 9). Now we can input all these numbers into the expression: 10⁄15 - 9⁄15 = 1⁄15. Therefore, 2⁄3 - 3⁄5 is equal to 1⁄15. The first multiple they all share is 12, so this is the least common multiple. To complete an addition (or subtraction) problem, multiply the numerators and denominators of each fraction in the problem by whatever value will make the denominators 12, then add the numerators. EX: So, you should multiply the fraction with the denominator equal to 5 (our 1/5) by 2 to get 10 (remember that you must multiply both top and bottom numbers):