Subtract 4/48 from 20/54
20/54 - 4/48 is 31/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 48 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 54 × 8 = 432,
20/54 = 20 × 8/54 × 8 = 160/432 - Likewise, for the 2nd fraction, since 48 × 9 = 432,
4/48 = 4 × 9/48 × 9 = 36/432 - Subtract the two like fractions:
160/432 - 36/432 = 160 - 36/432 = 124/432 - After reducing the fraction, the answer is 31/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/54-4/48 20/54-8/48 20/54-4/96 60/54-4/48 20/54-12/48 20/54-20/48 20/54-28/48