Subtract 56/21 from 4/2
1st number: 2 0/2, 2nd number: 2 14/21
4/2 - 56/21 is -2/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
4/2 = 4 × 21/2 × 21 = 84/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
56/21 = 56 × 2/21 × 2 = 112/42 - Subtract the two like fractions:
84/42 - 112/42 = 84 - 112/42 = -28/42 - After reducing the fraction, the answer is -2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/2-56/21 4/2-56/42 12/2-56/21 4/6-56/21 4/2-56/63 20/2-56/21 4/10-56/21 28/2-56/21 4/14-56/21