Question

4 over7 + 2over-3+5over21+-8over9
find the sum

Answer 1

$\frac{4}{7} + \frac{2}{ - 3} + \frac{5}{21} + \frac{ - 8}{9} \\ = \frac{36 - 42 + 15 - 56}{63} \\ = \frac{51 - 98}{63} \\ = \frac{ - 47}{63}$

Answer 2

$= \frac{4}{7} + \frac{2}{ - 3} + \frac{5}{21} + \frac{8}{9}$

$= \frac{36 - 42 + 15 - 56}{63}$

$= \frac{51 - 98}{63}$

$= \frac{ - 47}{63}$