Subtract 9/14 from 90/60, Solve 1 30/60

Subtract 9/14 from 90/60

1^st number: 1 30/60, 2^nd number: 9/14

90/60 - 9/14 is 6/7.

Find the least common denominator or LCM of the two denominators:
LCM of 60 and 14 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 60 × 7 = 420,
90/60 = 90 × 7/60 × 7 = 630/420
Likewise, for the 2nd fraction, since 14 × 30 = 420,
9/14 = 9 × 30/14 × 30 = 270/420
Subtract the two like fractions:
630/420 - 270/420 = 630 - 270/420 = 360/420
After reducing the fraction, the answer is 6/7

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad