Question

calcule:
a)1+(2/3)×9/8.
b)(1/3):(1/4)+1/5​

Answer 1

Resposta:

Explicação passo-a-passo:

a)1+(2/3)×9/8

= 1 + 2/8 (:2)/(:2) . 9/3

= 1 + 1/4.3

= 1 + 3/4

= (4+3)/4

= 7/4

_________

b)(1/3):(1/4)+1/5​

= 1/3 . 4 + 1/5

= 4/3 + 1/5

MMC (3,5)= 15

= (5.4 + 3.1)/15

= (20+3)/15

= 23/15