Question

Lesson
1. Rational number.

1) subtract
$\frac{4}{9} \: and \: \frac{ - 1}{6}$
2. what should be subtract from
$\frac{7}{ - 8} \: to \: get \frac{ - 13}{12} .$
3. simplify
$( \frac{ - 4}{5} \times \frac{15}{8} ) + ( \frac{ - 1}{3} \times \frac{ - 9}{7} ) - ( \frac{2}{9} \times \frac{27}{14})$
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Answer 1

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Answer 2

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