Question

a,5+3/4 b,8.5/7 c,11/12.2/5 d,12:2/3 e,5/8:2 g,4/9:2/5

Answer 1

a)

\(5+\dfrac{3}{4}=\dfrac{20}{4}+\dfrac{3}{4}=\dfrac{23}{4}\)

b)

\(8\cdot\dfrac{5}{7}=\dfrac{40}{7}\)

c)

\(\dfrac{11}{12}\cdot\dfrac{2}{5}=\dfrac{22}{60}=\dfrac{11}{30}\)

d)

\(12:\dfrac{2}{3}=\dfrac{12}{1}\cdot\dfrac{3}{2}=\dfrac{36}{2}=18\)

e)

\(\dfrac{5}{8}:2=\dfrac{5}{8}\cdot\dfrac{1}{2}=\dfrac{5}{16}\)

g)

\(\dfrac{4}{9}:\dfrac{2}{5}=\dfrac{4}{9}\cdot\dfrac{5}{2}=\dfrac{20}{18}=\dfrac{10}{9}\)

Answer 2

a) 23/4

b) 40/7

c)11/30

d)18

e)5/16

g)10/9