Subtract 15/60 from 3/63
3/63 - 15/60 is -17/84.
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,
3/63 = 3 × 20/63 × 20 = 60/1260 - Likewise, for the 2nd fraction, since 60 × 21 = 1260,
15/60 = 15 × 21/60 × 21 = 315/1260 - Subtract the two like fractions:
60/1260 - 315/1260 = 60 - 315/1260 = -255/1260 - After reducing the fraction, the answer is -17/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/63-15/60 3/63-30/60 9/63-15/60 3/63-45/60 15/63-15/60 3/63-75/60 21/63-15/60