Subtract 45/6 from 56/21
1st number: 2 14/21, 2nd number: 7 3/6
56/21 - 45/6 is -29/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
56/21 = 56 × 2/21 × 2 = 112/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
45/6 = 45 × 7/6 × 7 = 315/42 - Subtract the two like fractions:
112/42 - 315/42 = 112 - 315/42 = -203/42 - After reducing the fraction, the answer is -29/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/21-90/6 56/42-45/6 56/21-45/12 56/63-45/6 56/21-45/18 56/21-45/30 56/21-45/42