Question

help bài 1

Answer 1

a: \(=\dfrac{2}{9}+\dfrac{16}{9}-\dfrac{3}{10}-\dfrac{7}{10}=2-1=1\)

b: \(=\left(-\dfrac{11}{6}-\dfrac{1}{6}\right)+\left(\dfrac{2}{5}+\dfrac{13}{5}\right)=-2+3=1\)

c: \(=\left(\dfrac{3}{13}+\dfrac{10}{13}\right)-\dfrac{3}{7}-\dfrac{4}{7}=1-1=0\)

d: \(=\dfrac{-5}{8}+\dfrac{13}{8}+\dfrac{12}{7}+\dfrac{2}{7}=1+2=3\)