Question

Tính.

a) \(\dfrac{9}{11}-\dfrac{3}{11}\)                        b) \(\dfrac{10}{4}-\dfrac{5}{4}\)                     c) \(\dfrac{22}{15}-\dfrac{8}{15}\)

Answer 1

a) \(\dfrac{9}{11}-\dfrac{3}{11}=\dfrac{9-3}{11}=\dfrac{6}{11}\)

b) \(\dfrac{10}{4}-\dfrac{5}{4}=\dfrac{10-5}{4}=\dfrac{5}{4}\)

c) \(\dfrac{22}{15}-\dfrac{8}{15}=\dfrac{22-8}{15}=\dfrac{14}{15}\)