Subtract 4/21 from 56/5
1st number: 11 1/5, 2nd number: 4/21
56/5 - 4/21 is 1156/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 5 × 21 = 105,
56/5 = 56 × 21/5 × 21 = 1176/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
4/21 = 4 × 5/21 × 5 = 20/105 - Subtract the two like fractions:
1176/105 - 20/105 = 1176 - 20/105 = 1156/105 - In mixed form: 111/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/5-8/21 56/10-4/21 56/5-4/42 56/5-12/21 56/15-4/21 56/5-4/63 56/5-20/21 56/25-4/21 56/5-28/21 56/35-4/21