Subtract 27/20 from 10/63
1st number: 10/63, 2nd number: 1 7/20
10/63 - 27/20 is -1501/1260.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
10/63 = 10 × 20/63 × 20 = 200/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
27/20 = 27 × 63/20 × 63 = 1701/1260 - Subtract the two like fractions:
200/1260 - 1701/1260 = 200 - 1701/1260 = -1501/1260
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/63-27/20 10/63-54/20 10/63-27/40 30/63-27/20 10/63-81/20 10/63-27/60 50/63-27/20 70/63-27/20