Subtract 98/45 from 56/21
1st number: 2 14/21, 2nd number: 2 8/45
56/21 - 98/45 is 22/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 21 × 15 = 315,
56/21 = 56 × 15/21 × 15 = 840/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
98/45 = 98 × 7/45 × 7 = 686/315 - Subtract the two like fractions:
840/315 - 686/315 = 840 - 686/315 = 154/315 - After reducing the fraction, the answer is 22/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42-98/45 56/21-98/90 56/63-98/45