How to Add fractions

How to Add fractions

HOW TO ADD FRACTIONS Introducing: first addend second addend sum

Add Fractions 1 This picture shows an addition example with two addends and a sum. The first addend 1/5 is combined with the second addend 3/5 to give the sum 4/5. Notice how the sum 4/5 combines the 1 red fifth with the 3 blue fifths.

Add Fractions 2 /5 and 3/5 are like fractions because the denominators are the same. When the addend denominators are the same, add the numerators to get the numerator of the sum. 1

Add Fractions 3 The sum 12/8 is written as a mixed number in lowest terms. The numerals 12 /8 and 1 1/2 are correct names for the sum of 5/8 and 7/8.

Add Fractions 4 Here, mixed numbers are added. The whole number 1 in 1 3/5 is added to the whole number 2 in 2 1/5 for a whole number 3 in the sum. The fractions 3/5 and 1/5 are added for the 4/5 in the sum.

Add Fractions 5 The same example 1 3/5 plus 2 1/5 is shown with number lines. Add the whole numbers and then the fractions: 1 3/5 + 2 1/5 = (1+2)+ (3/5 + 1/5) = 3 4/5.

Add Fractions 6 This example shows the sum 3 5/5 written as 4. Since the fraction 5/5 is equal to 1, 3 5/5 is equal to 3 + 1 for a sum of 4

Add Fractions 7 This example shows the sum 3 7/5 written as 4 2/5. The 7/5 part of the sum can be renamed as 1 2/5 . The 1 in 1 2/5 is added to the whole number 3 for the 4 in 4 2/5: 1 3/5 + 2 4/5 = 3 7/5 = 3 + 1 2/5 = 4 2/5.

Add Fractions 8 The addends 2/3 and 3/5 are unlike fractions. Each addend is written with the common denominator 15 before the numerators are added, giving a sum of 19/15 or 1 4/15.

Add Fractions 9 The unlike fractions 21/4 and 12/3 are renamed as like fractions 23/12 and 18/12. Then the whole numbers and numerators are added for a sum of 3 11/12.

Add Fractions 10 Write each addend with a common denominator 12. Because 17/12 can be written as 15/12, we can write the sum 4 17/12 as 5 5/12. Add Fractions 11

What is the sum of 1 2/3 and 2 1/5 Add Fractions 12 To find the sum from the picture, color the whole number parts of each

addend onto the sum. So the first circle and the second and third circles will be colored in. Then color the fraction parts 2/3 and 1/5 onto the sum circles for a sum of 3 13/15. The illustration shows how the sum is calculated.

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