Question

Tính giá trị biểu thức:

a. \(\dfrac{3}{8}:\dfrac{9}{16}-\dfrac{2}{3}\)

b. \(\dfrac{3}{4}\text{×}\dfrac{16}{15}:\dfrac{3}{25}\)

Answer 1

a) 3/8 : 9/16 - 2/3

= 2/3 - 2/3

= 0

b) 3/4 × 16/15 : 3/25

= 4/5 : 3/25

= 20/3