Question

Calculati efectuând mai intai simplificarile ​

Answer 1

Explicație pas cu pas:

(cand inmultesc amplific si /= linie de fractie)

4.

a) 11/5•2 +4/10=22/10+4/10=26/10

b) 12/9+7/3•3=12/9+21/9=33

c) 7/4+(-2/8)=5/-4

d) (-18/21)+10/14= -8/-7

e) (-20/24)+(-15/18)= -5/-6

f) (-21/56)+(-33/24)=12/-30