Subtract 90/60 from 24/28
1st number: 24/28, 2nd number: 1 30/60
24/28 - 90/60 is -9/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
24/28 = 24 × 15/28 × 15 = 360/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
90/60 = 90 × 7/60 × 7 = 630/420 - Subtract the two like fractions:
360/420 - 630/420 = 360 - 630/420 = -270/420 - After reducing the fraction, the answer is -9/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/28-90/60 24/56-90/60 72/28-90/60 24/84-90/60