Subtract 2/15 from 18/63
18/63 - 2/15 is 16/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 15 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
18/63 = 18 × 5/63 × 5 = 90/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
2/15 = 2 × 21/15 × 21 = 42/315 - Subtract the two like fractions:
90/315 - 42/315 = 90 - 42/315 = 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: 36/63-2/15 18/63-4/15 18/63-2/30 54/63-2/15 18/63-6/15 18/63-2/45 90/63-2/15 18/63-10/15 18/63-2/75 18/63-14/15