Question

a cuanto es igual los 2/5 de 30 mas 1/5 de 30 mas 1/15 de 30 mas 1/3 de 30

Answer 1

2/5x30+1/5x30+1/15x30+1/3x30 = 60/5+30/5+30/15+30/3 = 12+6+2+10 = 30

Answer 2

seria:
(2/5*30)+(1/5*30)+(1/15*30)+(1/3*30)=(12+6+2+10)=10