Question

what should me added to 7/15 to get -2/5​

Answer 1

$\frac{7}{15} + x = \frac{ - 2}{5} \\ x = - \frac{ 2}{5} - \frac{7}{15} \\ x = \frac{ - 6 - 7}{15} \\ x = - \frac{13}{15}$

Answer 2

Answer:

heya mate ☺

Let x be added to 7 / 15 to get -2 / 5

$according \: to \: the \: question \\ x + \frac{7}{15} = \frac{ - 2}{5} \\ \\ = > \frac{15x + 7}{15} = \frac{ - 2}{5} \\ \\ = > 5(15x + 7) = 15 \times - 2 \\ = > 75x + 35 = - 30 \\ = > 75x = - 30 - 35 \\ = > 75x = - 65 \\ = > x = \frac{ - 65}{75} \\ = > x = \frac{ - 13}{15}$

vEriFiCaTiOn oF mY aNsWeR :

$\frac{ - 13}{15} + \frac{7}{15} \\ \\ = \frac{ - 13 + 7}{15} \\ \\ = \frac{ - 6}{15} \\ \\ = \frac{ - 2}{15}$

So final answer would be : -13 / 15

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