Question

Calculati
7/25:42/50
2/5:8/125
47/7:47/8
5/2:0,1
5/12:35/4
Va rog mult de tot! Vreau si explicații!Dau coroana

Answer 1

7/25:42/50 (la impartirea a 2 fractii, a doua se inverseaza si se efectueaza inmultirea)
7/25*50/42( simplificat prin 7 si 25)
1/1*2/6=2/6=1/3

2) 2/5:8/125
2/5*125/8 simplificam prin 2 si 5
1/1*25/4=6(1/4)

3) 47/7:47/8
47/7*8/47 simplificam prin 47
1/7*8/1
8/7=1(1/7)

4)
5/2:0.1
5/2:1/10
5/2*10/1 simplificăm prin 2
5/1*5/1
25

5)5/12:35/4
5/12*4/35 simplificăm prin 4 și 5
1/3*1/7
1/21