Question

CALCULE

a) 7/8 . 3/4 =

b) 9/10 : 1/8 =

c) (1/2 - 1/3 ) - ( 1/6 - 1/10 )


Cálculos POR FAVOR

Answer 1

7/8 *  3/4  =  ( 7 * 3 )/ ( 8 *4 ) = 21/32 ***

9/10 : 1/8 = 9/10 *  8/1 = 72/10  =  36/5 ****
(1/2 - 1/3) - ( 1/6 - 1/10 ) =
mmc  2, 3, 6, 10   = 30
( 15 - 10 )/30 - ( 5 - 3 )/30  = 
5/30  - 2/30  = 3/30  = 1/10 ****

Answer 2

Olá ☺

a)

7/8 . 3 /4 = 21/ 32

=> Multiplica-se numerador com numerador e denominador com denominador.

b)

9/10 ÷ 1/8 = 9/10 . 8/1 = 72/ 10 ÷ 2 = 36/5

c)

(1/2 - 1/3) -( 1/6 - 1/10)

m.m.c(2,3,6,10)= 30

(15-10)-(5-3)/30= 5-2/30= 3 /30 ÷ 3 = 1/10

Bons Estudos :)