Question

What fraction must be subtracted from the sum of 1/5 and 1/9 to have an average of 13/270of all three fractions ?

Answer 1

Answer:

x=1/6

Step-by-step explanation:

[(1/5) + (1/9) -x] ÷ 3=13/270

[ 9+5- 45x ]=(13*45*3)/270

14-45x = 13*45/90

14-45x = 13/2

28-90x = 13

90x=15

x=1/6

I hope it helps you