1. (1/2-3/4+2/8)/(1/2+3/4-7/8)? 2. (5/6+1/3) pangkat min 2?

Question

Matematika Diposting : 2018-02-20 Diupdate : 2018-02-25 eriana6

Pertanyaan

1. (1/2-3/4+2/8)/(1/2+3/4-7/8)?
2. (5/6+1/3) pangkat min 2?

Answer 1

(1/2-3/4-2/8) / (1/2+3/4+7/8)
= (4/8-6/8-2/8) / (4/8+6/8+7/8)
= -4/8 / 17/8
= -4/8 x 8/17
= -32/136
= -4/17

Answer 2

1. (1/2 - 3/4 + 1/4) : (1/2 + 3/4 - 7/8)
= 0 : 3/8
= 0

2. (5/6 + 1/3)^-2
= (5/6 + 2/6)^-2
= (7/6)^-2
= (6/7)^2
= 36/49

Semoga membantu :)