Subtract 56/60 from 42/63
42/63 - 56/60 is -4/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 60 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
42/63 = 42 × 20/63 × 20 = 840/1260 - Likewise, for the 2nd fraction, since 60 × 21 = 1260,
56/60 = 56 × 21/60 × 21 = 1176/1260 - Subtract the two like fractions:
840/1260 - 1176/1260 = 840 - 1176/1260 = -336/1260 - After reducing the fraction, the answer is -4/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/63-56/60