Subtract 4/28 from 20/5
1st number: 4 0/5, 2nd number: 4/28
20/5 - 4/28 is 27/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 5 × 28 = 140,
20/5 = 20 × 28/5 × 28 = 560/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
4/28 = 4 × 5/28 × 5 = 20/140 - Subtract the two like fractions:
560/140 - 20/140 = 560 - 20/140 = 540/140 - After reducing the fraction, the answer is 27/7
- In mixed form: 36/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5-4/28 20/5-8/28 20/10-4/28 20/5-4/56 60/5-4/28 20/5-12/28 20/15-4/28 20/5-4/84 20/5-20/28 20/25-4/28 20/35-4/28