Subtract 48/21 from 32/15
1st number: 2 2/15, 2nd number: 2 6/21
32/15 - 48/21 is -16/105.
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,
32/15 = 32 × 7/15 × 7 = 224/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
48/21 = 48 × 5/21 × 5 = 240/105 - Subtract the two like fractions:
224/105 - 240/105 = 224 - 240/105 = -16/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/15-48/21 32/15-96/21 32/30-48/21 32/15-48/42 96/15-48/21 32/45-48/21 32/15-48/63 32/75-48/21