Subtract 4/28 from 54/20
1st number: 2 14/20, 2nd number: 4/28
54/20 - 4/28 is 179/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
54/20 = 54 × 7/20 × 7 = 378/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
4/28 = 4 × 5/28 × 5 = 20/140 - Subtract the two like fractions:
378/140 - 20/140 = 378 - 20/140 = 358/140 - After reducing the fraction, the answer is 179/70
- In mixed form: 239/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20-8/28 54/40-4/28 54/20-4/56 54/20-12/28 54/60-4/28 54/20-4/84 54/20-20/28