Question

1)Determine:A)4/5 vezes 420B)a metade de 3/7C)3/4 vezes 640D)2/3 vezes 3/4 vezes 2/7

Answer 1

A) 4/5 * 420
(4*420) / (5*1)
1680 / 5
336

B) (3/7) / 2
(3/2) / (7/1)
1.5 / 7
≈ 0,2142...

C) 3/4 * 640
(3*640) / (4*1)
1920/4
480

D) 2/3 * 3/4 * 2/7
(2*3*2) / (3*4*7)
12 / 84
≈ 0,1428...