Question

[Thao Vu]

tính bằng cách thuận tiện:a)5/6 - (2/5 + 1/3)

b)3/4 - 1/3 - 1/6

Answer 1

[»» Hüỳñh Äñh Phươñg ( ɻɛɑm ʙáo cáo....]

a) \(\frac{5}{6}-\left(\frac{2}{5}+\frac{1}{3}\right)=\frac{5}{6}-\frac{11}{15}=\frac{1}{10}\)

b) \(\frac{3}{4}-\frac{1}{3}-\frac{1}{6}=\frac{3}{4}-\left(\frac{1}{3}+\frac{1}{6}\right)=\frac{3}{4}-\frac{1}{2}=\frac{1}{4}\)