Question

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Answer 1

a)\(\dfrac{15}{12}\)

b)\(\dfrac{14}{5}\)

c)\(\dfrac{18}{6}\)

d)\(\dfrac{1}{8}\)

e)\(\dfrac{3}{18}\)

f)\(\dfrac{5}{20}\)

Answer 2

Answer 3

 \(a)\)\(\dfrac{17}{12}-\dfrac{2}{12}=\dfrac{17-2}{12}=\dfrac{15}{12}\)

\(b)\)\(\dfrac{17}{5}-\dfrac{3}{5}=\dfrac{17-3}{5}=\dfrac{14}{5}\)

\(c)\)\(\dfrac{45}{6}-\dfrac{27}{6}=\dfrac{45-27}{6}=\dfrac{18}{6}=3\)

\(d)\)\(\dfrac{3}{4}-\dfrac{5}{8}=\)\(\dfrac{3}{4}=\dfrac{3.4}{4.4}=\dfrac{12}{16}\) ; \(\dfrac{5}{8}=\dfrac{5.2}{8.2}=\dfrac{10}{16}\)

\(\dfrac{12}{16}-\dfrac{10}{16}=\dfrac{2}{16}\)

\(c)\)\(\dfrac{4}{9}-\dfrac{5}{18}=\dfrac{4}{9}=\dfrac{4.2}{9.2}=\dfrac{8}{18}\)

\(\dfrac{8}{18}-\dfrac{5}{18}=\dfrac{3}{18}\)

\(f)\)\(\dfrac{13}{20}-\dfrac{2}{5}=\dfrac{13}{20}-\dfrac{2.4}{5.4}\)

\(\dfrac{13}{20}-\dfrac{8}{20}=\dfrac{5}{20}\)