Question

1-Calcule:

a-1/5+1/2-1/3

b-2/3+1/4 ˣ 3

c-3/4 dividido 1/2-2/3

d-3/5+1/5 dividido 1/10

Answer 1

a)1/5+1/2-1/3=(6+15-10)/30=11/30
b)2/3+(1/4).3=2/3+3/4=(8+9)/12=17/12
c)[(3/4)/(1/2)]-2/3=6/4-2/3=(18-8)/12=10/12=5/6
d)3/5+[(1/5)/(1/10)]=3/5+10/5=13/5