Respuestas

2012-08-21T01:50:22+02:00

A) (1/4)*60=60/4=15

B) (7/5)*120=(7*120)/(5)=840/5=168

C) (3/4)*60=(3*60)/(4)=180/4=45

D)  (2/3)*90=(2*90)/(3)=180/3=60