Subtract 12/28 from 20/8
1st number: 2 4/8, 2nd number: 12/28
20/8 - 12/28 is 29/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 28 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
20/8 = 20 × 7/8 × 7 = 140/56 - Likewise, for the 2nd fraction, since 28 × 2 = 56,
12/28 = 12 × 2/28 × 2 = 24/56 - Subtract the two like fractions:
140/56 - 24/56 = 140 - 24/56 = 116/56 - After reducing the fraction, the answer is 29/14
- In mixed form: 21/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/8-12/28 20/8-24/28 20/16-12/28 20/8-12/56 60/8-12/28 20/8-36/28 20/24-12/28 20/8-12/84 20/8-60/28 20/40-12/28 20/8-84/28 20/56-12/28