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4 – \(2\frac{2}{3}\,+ 3\frac{1}{5}\) = ................

A) -2/15

B) -28/15

C) 8/15

D) 1/2

2 Answers

+1 vote
by (57.0k points)
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Best answer

Correct option is (B) -28/15

\(4-(2\frac{2}{3}+3\frac{1}{5})\) \(=4-(\frac{2\times3+2}{3}+\frac{3\times5+1}{5})\)

\(=4-(\frac{8}{3}+\frac{16}{5})\)

\(=4-\frac{8\times5+16\times3}{15}\)

\(=4-\frac{40+48}{15}\)

\(=\frac{15\times4-88}{15}\)

\(=\frac{60-88}{15}=\frac{-28}{15}.\)

+1 vote
by (36.7k points)

Correct option is  B) -28/15 

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