Question

simplify :a) 5/15+ -7/5+ -9/63+14/10

pls solve it fast and do all the steps
its urgent​

Answer 1

Answer:

1/

Explanation:

1/3+ - 7/5 + - 1/7+ 7/5

= 1/3-1/7

=4/21

Answer 2

Answer:

9×10/15.

Explanation:

5/15 + (-7/5) + (-9/63) + 14/10.

= 5×42/15×42 + (-7×126/5×126) + (-9×10/63×10) +

14×63/10×63.

= 210/630 + (-882/630) + (-90/630) + 882/630.

= 882-210-90/630 + 882/630.

= 582/630 + 882/630.

= 582+882/630.

= 1464/630.

= 9×10/15.

I hope it's help you.