Question

urgent va rog am nev acum​

Answer 1

Răspuns:

6/5

4/7

8/9

5/7

9/10

18.

a) 1/7+1/4= 4/28+7/28=11/28

b) 1/5-1/6=6/30-5/30=1/30

c) 1/4+1/6=6/24+4/24=10/24=5/12

d) 7/8-5/12=42/48-20/48=22/48=11/24

e) 9/5-3/10=18/10-3/10=15/10=3/2

f) 9/20+4/6=27/60+40/60=67/60 (presupun ca voiai sa zici 36 nu 26)