Question

(- 7 upon 21 × - 3 upon 14)×( 5 upon 14 × - 4 upon 15)​

Answer 1

Answer:

$\frac{ - 7}{21} \times \frac{ - 3}{14} \times \frac{5}{14} \times \frac{ - 4}{15}$

$\frac{ - 1}{7 \times 7 \times 3}$

$\frac{ - 1}{147}$

Answer 2

Answer:

(-7/21 X -3/14)(5/14 X -4/15)

= (-1/3 X -3/14)(1/14 X -4/3)

= (-1 X -1/14)(1/7 X -2/3)

= 1/14 X -2/21

= -2/294

=-1/147