Răspuns
Explicație pas cu pas:
8.a. 3/5÷2si1/10=3/5÷21/10=3/5x10/21=2/7
b. 8/13÷40/26=8/13x26/40=2/5
c. 1÷16/5=1x5/16=5/16
d. 3÷6/11=3x11/6=11/2
e. 1/7÷5/14=1/7x14/5=2/5
f. 3si1/7÷22/21=22/7x21/22=3
