Question

3/5 + 1/6 + 7/30              3/4 - 1/2 + 2/5

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Answer 1

\(\frac{3}{5}+\frac{1}{6}+\frac{7}{30}=\frac{18}{30}+\frac{5}{30}+\frac{7}{30}=\frac{30}{30}=1\)

\(\frac{3}{4}-\frac{1}{2}+\frac{2}{5}=\frac{3}{4}-\frac{2}{4}+\frac{2}{5}=\frac{1}{4}+\frac{2}{5}=\frac{5}{20}+\frac{8}{20}=\frac{13}{20}\)

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Answer 2

\(\frac{3}{5}+\frac{1}{6}+\frac{7}{30}\)

\(=\frac{18}{30}+\frac{5}{30}+\frac{7}{30}\)

\(=\frac{18+5+7}{30}\)

\(=\frac{30}{30}\)

\(=1\)

\(\frac{3}{4}-\frac{1}{2}+\frac{2}{5}\)

\(\frac{15}{20}-\frac{10}{20}+\frac{8}{20}\)

\(=\frac{15-10+8}{20}\)

\(=\frac{13}{20}\)

Answer 3

3/5 + 1/6 + 7/30 = 18/30 + 5/30 + 7/30 = 23/30 + 7/30 = 30/30 = 1

3/4 - 1/2 + 2/5 = 3/4 -2/4 + 2/5 = 1/4 + 2/5 = 5/20 + 8/20 = 13/20

Answer 4

\(\frac{3}{5}+\frac{1}{6}+\frac{7}{30}\)

\(=\frac{18}{30}+\frac{5}{30}+\frac{7}{30}\)

\(=\frac{18+5+7}{30}=\frac{30}{30}=1\)

\(\frac{3}{4}-\frac{1}{2}+\frac{2}{5}\)

\(=\frac{15}{20}-\frac{10}{20}+\frac{8}{20}\)

\(=\frac{15-10+8}{20}\)

\(=\frac{13}{20}\)