Find the value of :
1) -2/5+7/9
2) 4/-7 - 5/14
3) (-14/25) x (30/-49)
4) 19/20 divided by (38/15)

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Solution

$\frac{- 2}{5} + \frac{7}{9} = \frac{- 18 + 35}{45} = \frac{17}{45} 3) \frac{- 14}{25} \times \frac{30}{- 49} = \frac{2 \times 7}{5 \times 5} \times \frac{5 \times 6}{7 \times 7} = \frac{2 \times 6}{5 \times 7} = \frac{12}{35}$

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