Subtract 27/63 from 1/20
1/20 - 27/63 is -53/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
1/20 = 1 × 63/20 × 63 = 63/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
27/63 = 27 × 20/63 × 20 = 540/1260 - Subtract the two like fractions:
63/1260 - 540/1260 = 63 - 540/1260 = -477/1260 - After reducing the fraction, the answer is -53/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20-27/63 1/20-54/63 1/40-27/63 3/20-27/63 1/20-81/63 1/60-27/63 5/20-27/63 7/20-27/63