Question

Find a pair of fractions whose sum is 7 by 11 and difference is 2 by 11

Answer 1

Step-by-step explanation:

x+y=7/11 -1

x-y=2/11. -2

Add 2and 1

x+y+x-y=7/11+2/11

2x=9/11

x=9/22. -3

Put 3 in 1

9/22+y=7/11

y=7/11-2/22

y=14-2/22

y=12/22

So 9/22 * 22/12=x/y

9/12