Page 60 - SPARK OF MATH book 4

(3-3) Adding and subtracting fractions.

The sum: The difference:

1 1 1 1 1 1

4 4 5 5 5 5

1 1 1+1 2 4 1 4−1 3
+ −
4 4 4 4 5 5 5 5

To add or subtract fractions with the SAME denominator, just add

up the numerators, and the denominators will stay the same.

To find 2 1
3 6
2 1 Use equivalent fractions
3 6

2 1 4 1 5
SO,
3 6 6 6 6

Add the following fractions.

1 2 3 4
3 1 4 4 3 2 4 3

8 8 8 10 10 10 7 7 7 13 13 13

5 6 7 8
4 3 5 3 4 3 4 7
13 13 9 18 5 35 6 12

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