Question

subtract the sum of -4/10 and 2/5 from the sum of 7/15 and 3/-5​

Answer 1

Answer:

-2/15 is the answer

hope it helps

Answer 2

Answer:

hope it helps

Step-by-step explanation:

sum of -4/10 and 2/5

$= \frac{ - 4}{10} + \frac{2}{5} \\ = \frac{ - 4 + 4}{10} \\ = \frac{0}{10} =0$

Now, sum of 7/15 and3/-5

$= \frac{7}{15} + \frac{3}{ - 5} \\ = \frac{7 + 9}{ - 15} \\ = \frac{16}{ - 15}$ substraction of 0 and 16/15

$= 0 - \frac{16}{ - 15} \\ = \frac{0 - ( + 16)}{ - 15} \\ = \frac{0 - 16}{ - 15} \\ = \frac{ - 16}{ - 15} \\ = \frac{16}{15}$