Adding and subtracting like fractions
The question
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6÷2=3
10÷2=5
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- Both are tenths, so the pieces are already the same size. That is what lets them be counted together.
- 7 of them take away 1 of them is 6 of them: . The bottom does not change — the pieces did not change size.
- can be written in bigger pieces. 2 goes into both, so take it off both: = .
How it works.
- 01
Both are tenths, so the pieces are already the same size. That is what lets them be counted together.
- 02
7 of them take away 1 of them is 6 of them: 6/10. The bottom does not change — the pieces did not change size.
- 03
6/10 can be written in bigger pieces. 2 goes into both, so take it off both: 6/10 = 3/5.