Question

calcule
a)3/4-1/2.
b)3/8+3/2.
c)3/5+3/4+3/10
d) 8/5-1/4-3/10
por favor urgentee

Answer 1

Resposta:

a) 3/4-1/2=6-4/8=2/8=1/4

b) 3/8+3/2=9+24/16=33/16

c) 3/5+3/4+3/10

5,4,10 |2

5,2,5 | 2

5,1,5 | 5

1, 1, 1

mmc(5,4,10)=2*2*5=20

12+15+6/20

33/20

d) 8/5-1/4-3/10

  5,4,10 | 2

   5,2,5 | 2

   5,1,5 | 5

   1,1,1

 mmc(5,4,10)=2*2*5=20

 32-5-6/20=32-11/20=21/20

Explicação passo-a-passo: