Subtract 18/63 from 2/15
2/15 - 18/63 is -16/105.
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,
2/15 = 2 × 21/15 × 21 = 42/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
18/63 = 18 × 5/63 × 5 = 90/315 - Subtract the two like fractions:
42/315 - 90/315 = 42 - 90/315 = -48/315 - After reducing the fraction, the answer is -16/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/15-18/63 2/15-36/63 2/30-18/63 6/15-18/63 2/15-54/63 2/45-18/63 10/15-18/63 2/15-90/63 2/75-18/63 14/15-18/63