Question

Resolva as expressões numéricas abaixo: a)(2/4×7/4+3/2)�(3/8+7/8)= b)(4/2+1/4-3/8)÷11/2=

Answer 1

Resposta:

a) 95/32

b) 15/44

Explicação passo-a-passo:

a) a)(2/4×7/4+3/2)�(3/8+7/8)= (14/16 + 3/2) . (10/8) = (14 + 24)/16 . 10/8 =

38/16 . 10/8 = 380/128 = 190/64 = 95/32

b)(4/2+1/4-3/8)÷11/2= [( 16 + 2 - 3) / 8] / 11/2 = 15/8.2/11 = 30/88 = 15/44