Subtract 56/21 from 48/15
1st number: 3 3/15, 2nd number: 2 14/21
48/15 - 56/21 is 8/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
48/15 = 48 × 7/15 × 7 = 336/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
56/21 = 56 × 5/21 × 5 = 280/105 - Subtract the two like fractions:
336/105 - 280/105 = 336 - 280/105 = 56/105 - After reducing the fraction, the answer is 8/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/15-56/21 48/30-56/21 48/15-56/42 48/45-56/21 48/15-56/63 48/75-56/21