Răspuns:
SALUT!
1.32/25*15/16*5/9=2/5*5*1/3=2*1/3=2/3
2.8/9*27/40*35/18=3/5*35/18=7/6
3.7/5*3/14*2 1/12=1/5*1/4=1/20
4.4/45*3 3/8*15/2=2/15*3/8*15=3/4
5. 6 1/4*7/36*27/35=1/4*1/6*9/5=9/40
Sper sa fie corect.
Explicație pas cu pas:
/-fractie
*-inmultirea