Subtract 54/60 from 15/63
15/63 - 54/60 is -139/210.
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,
15/63 = 15 × 20/63 × 20 = 300/1260 - Likewise, for the 2nd fraction, since 60 × 21 = 1260,
54/60 = 54 × 21/60 × 21 = 1134/1260 - Subtract the two like fractions:
300/1260 - 1134/1260 = 300 - 1134/1260 = -834/1260 - After reducing the fraction, the answer is -139/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/63-54/60 45/63-54/60 75/63-54/60