Question

completeaza la numarator cu numarul potrivit pentru a obtine propoziții adevarate. Va rog frumos ex a) si b).

Answer 1

a). 3/9+4/9=7/9

2/6+3/6=5/6

1/5+4/5=5/5

7/15-5/15=2/15

4/4-3/4=1/4

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b). 2/6+1/6=3/6

3/7+2/7=5/7

6/7-2/7=4/7

5/5-3/5=2/5

8/9-6/9=2/9