Question

Divide the sum of -13/5 and 12/7 by the product of -13/7 and -1/2

answer is -62 / 65 how to tell me​

Answer 1

Step-by-step explanation:-

13/5+12/7 ÷ -13/7×(-1/2)

= -31/35 ÷ 13/14

= -31/35 × 14/13

= -434/455

= -62/65

Answer 2

Answer:

.

$= \frac{ - 13}{5} + \frac{12}{7}$

L.C.M of all denominator = 35

$= \frac{ - 13}{5} \times 7 = - \frac{ - 91}{35} \\ = \frac{12}{7} \times 5 = \frac{60}{35}$

$\frac{ - 91}{35} + \frac{60}{35} \\ \frac{ - 91 + 60}{35} \\ = \frac{ - 31}{35}$

product =

$= \frac{ - 13}{7} \times \frac{ - 1}{2} \\ = \frac{ - 13}{14}$

division =

$\frac{ - 31}{35} \div \frac{ - 13}{14} \\ it \: is \: in \: division \: so \: we \: have \: to \: take \: out \: the \: reciprocal \\ \frac{ - 31}{35} \times \frac{ 14}{13} \\ = \frac{ - 31}{5} \times \frac{2}{13} \\ = - 31 \times 2 = - 62 \\ = 5 \times 13 = 65 \\ = \frac{ - 62}{65}$