Question

olve
a. -2/5 + 2/3
b. -6/5 x (-2)
c. 4/9 divided by -5/7 ​

Answer 1

$\huge\underline\mathbb\color{red}{ANSWER}$

$(a) - \frac{ 2}{5} + \frac{2}{3}$

$\: \: \: \: = \frac{3( - 2) + 5(2)}{5 \times 3}$

$\: \: \: \: = \frac{ - 6 + 10}{15}$

$\: \: \: \: = \frac{- 4}{15}$

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$(b) \: - \frac{6}{5} \times ( - 2)$

$\: \: \: \: = \frac{12}{5}$

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$(c) \: \frac{4}{9} \div \frac{ - 5}{9}$

$\: \: \: \: = \frac{4}{9} \times \frac{ - 9}{5}$

$\: \: \: \: = \frac{4}{1} \times \frac{ - 1}{ 5}$

$\: \: \: \: = \frac{-4}{5}$

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