Question

Answer 1

a: =2/3-2/3+5/7=5/7

b: \(=12\cdot\dfrac{14-8+87}{12}=93\)

c: \(=\dfrac{-9}{25}\left(\dfrac{53}{3}-\dfrac{23}{3}\right)=\dfrac{-9}{25}\cdot10=-\dfrac{90}{25}=\dfrac{-18}{5}\)

d: \(=\dfrac{3}{7}\left(-\dfrac{15}{13}-\dfrac{11}{13}-1\right)=\dfrac{3}{7}\cdot\left(-3\right)=-\dfrac{9}{7}\)

e: \(=\dfrac{15}{37}-\dfrac{21}{33}+\dfrac{8}{7}+\dfrac{22}{37}+\dfrac{7}{11}=1-1+\dfrac{8}{7}=\dfrac{8}{7}\)