Question

Dau coroanaaaa!!!!!
Varooggg!!!!​

Answer 1

Totul este egal cu 0

Answer 2

Răspuns:

Explicație pas cu pas:

5/8+1/4=5/8+2/8=7/8

7/15+1/5=7/15+3/15=8/15

4/15-1/5=4/15-3/15=1/15

3/7-1/21=9/21-1/21=8/21

1/5·1/4=1/20

3/7·2/11=6/77

3/7:18/28=3/7·28/18=4/6=2/3

4/3:12/15=4/3·15/12=5/3