Question

Answer 1

e: \(=\dfrac{12}{24}\cdot\dfrac{45}{30}\cdot\dfrac{13}{65}=\dfrac{1}{2}\cdot\dfrac{3}{2}\cdot\dfrac{1}{5}=\dfrac{1}{10}\cdot\dfrac{3}{2}=\dfrac{3}{20}\)

f: \(=\dfrac{27\left(1-5\right)}{7\cdot27}=\dfrac{-4}{7}\)

g: \(=\dfrac{11\left(-135+115\right)}{-20}=11\)

h: \(=\dfrac{17\left(-13+2\right)}{\left(-11\right)\cdot\left(2+19\right)}=\dfrac{17}{21}\)

i: \(=\dfrac{15\left(8-2\right)}{60\left(12-8\right)}=\dfrac{1}{4}\cdot\dfrac{6}{4}=\dfrac{6}{16}=\dfrac{3}{8}\)

j: \(=\dfrac{15\left(13+6\right)}{19\left(2-17\right)}=-1\)