Subtract 20/28 from 70/8
1st number: 8 6/8, 2nd number: 20/28
70/8 - 20/28 is 225/28.
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,
70/8 = 70 × 7/8 × 7 = 490/56 - Likewise, for the 2nd fraction, since 28 × 2 = 56,
20/28 = 20 × 2/28 × 2 = 40/56 - Subtract the two like fractions:
490/56 - 40/56 = 490 - 40/56 = 450/56 - After reducing the fraction, the answer is 225/28
- In mixed form: 81/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/8-40/28 70/16-20/28 70/8-20/56 70/8-60/28 70/24-20/28 70/8-20/84 70/40-20/28 70/56-20/28