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Question

15/34+7/21+19/34+1 5/7 + 2/3

2/7 x 5 1/2 -3 1/2 x 2/7 

Answer 1

a,  \(\frac{15}{34}+\frac{7}{21}+\frac{19}{34}+1\frac{5}{7} + \frac{2}{3}\)

\(=(\frac{15}{34}+\frac{19}{34})+(\frac{7}{21}+1\frac{5}{7}+ \frac{2}{3})\)

\(=1+1\)

\(=2\)

b, \(\frac{2}{7} .5\frac{1}{2} -3\frac{1}{2}. \frac{2}{7}\)

\(=\frac{2}{7}(\frac{11}{2}-\frac{7}{2})\)

\(=\frac{2}{7}.2\)

\(=\frac{4}{7}\)