Subtract 20/48 from 30/28
1st number: 1 2/28, 2nd number: 20/48
30/28 - 20/48 is 55/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 28 × 12 = 336,
30/28 = 30 × 12/28 × 12 = 360/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
20/48 = 20 × 7/48 × 7 = 140/336 - Subtract the two like fractions:
360/336 - 140/336 = 360 - 140/336 = 220/336 - After reducing the fraction, the answer is 55/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28-20/48 30/28-40/48 30/56-20/48 30/28-20/96 90/28-20/48 30/28-60/48 30/84-20/48