Question

Answer 1

Bài 1.

a.\(\dfrac{5}{6}-\left(-\dfrac{6}{5}\right)=\dfrac{5}{6}+\dfrac{6}{5}=\dfrac{61}{30}\)

b.\(\dfrac{7}{8}.\dfrac{3}{7}-\dfrac{3}{7}.\dfrac{1}{3}=\dfrac{3}{7}.\left(\dfrac{7}{8}-\dfrac{1}{3}\right)=\dfrac{3}{7}.\dfrac{13}{24}=\dfrac{13}{56}\)

c.\(\dfrac{5}{8}+1\dfrac{1}{2}+\dfrac{3}{4}-\dfrac{3}{8}=\dfrac{2}{8}+\dfrac{3}{2}+\dfrac{3}{4}=\dfrac{5}{2}\)

d.\(\dfrac{4}{9}-\left(-\dfrac{3}{2}\right)+\dfrac{1}{3}=\dfrac{4}{9}+\dfrac{3}{2}+\dfrac{1}{3}=\dfrac{41}{18}\)