Question

1) Tính nhanh:

-3/32 + -6/17 + -1/6 + -39/32 + -11/17

2) Tìm x:

x/5 = 3/5 + -5/4

Answer 1

Bài 1: 

\(=\dfrac{-3-39}{42}+\dfrac{-6-11}{17}-\dfrac{1}{6}=-\dfrac{119}{48}\)

Bài 2: 

=>x:5=-13/20

hay x=-65/20=-13/4