Question 82898
x+2/3x+1/2x+1/7x=97 find a common denominator so we can add the fractions:
7*2*3=42 so we change every fraction to have a denominator of 42 & add the numerators thus:
2/3=2*14/42=28/42
1/2=1*21/42=21/42
1/7=1*6/42=6/42
(42+28+21+6)x/42=97
97x/42=97 now we cross multiply:
97x=42*97
x=42*97/97
x=42 answer for the original number.
proof
42+42/2+42/3+42/7=97
42+28+21+6=97
97=97