Question

Please give with explanation​

Answer 1

hope that helps roblox6084.

Answer 2

Answer:

a+1/1+1/12+1/4=1

a+1/1+1/13/4=1

a+1/1+4/13=1

a+1/17/13=1

a+13/17=1

1/a+17/13=1/1

1/a=1-17/13

1/a=-4/13

by adding 1 on both sides

1+1/a=1-4/13

1+1/a=9/13

hope this help.