Subtract 12/63 from 3/15
3/15 - 12/63 is 1/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 15 × 21 = 315,
3/15 = 3 × 21/15 × 21 = 63/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
12/63 = 12 × 5/63 × 5 = 60/315 - Subtract the two like fractions:
63/315 - 60/315 = 63 - 60/315 = 3/315 - After reducing the fraction, the answer is 1/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15-12/63 3/15-24/63 3/30-12/63 9/15-12/63 3/15-36/63 3/45-12/63 3/15-60/63 3/75-12/63 21/15-12/63 3/15-84/63