Question

10)solve : (a.) 4/7÷(-5/7) (b) 9/25-17/50​

Answer 1

Answer:

solution:-

A) , 4/7÷(-5/7)

4/7*-7/5

-4/5

Answer 2

Step-by-step explanation:

$\frac{4}{7} \div \frac{( - 5)}{7}$

$= \frac{4}{7} \times \frac{( - 7)}{5}$

$= \frac{4}{1} \times \frac{( - 1)}{5}$

$= \frac{( - 4)}{5}$

b)

$\frac{9}{25} - \frac{17}{50}$

$= \frac{(9 \times 2) + (17 \times 1)}{50}$

$\frac{18 + 17}{50} = \frac{35}{50} = \frac{7}{10}$