Subtract 27/21 from 2/63
1st number: 2/63, 2nd number: 1 6/21
2/63 - 27/21 is -79/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 21 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
2/63 = 2 × 1/63 × 1 = 2/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
27/21 = 27 × 3/21 × 3 = 81/63 - Subtract the two like fractions:
2/63 - 81/63 = 2 - 81/63 = -79/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/63-27/21 2/63-54/21 2/63-27/42 6/63-27/21 2/63-81/21 2/63-27/63 10/63-27/21 14/63-27/21