Subtract 10/28 from 20/5
1st number: 4 0/5, 2nd number: 10/28
20/5 - 10/28 is 51/14.
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,
10/28 = 10 × 5/28 × 5 = 50/140 - Subtract the two like fractions:
560/140 - 50/140 = 560 - 50/140 = 510/140 - After reducing the fraction, the answer is 51/14
- In mixed form: 39/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/5-10/28 20/5-20/28 20/10-10/28 20/5-10/56 60/5-10/28 20/5-30/28 20/15-10/28 20/5-10/84 20/5-50/28 20/25-10/28 20/5-70/28 20/35-10/28