Subtract 49/18 from 21/6
1st number: 3 3/6, 2nd number: 2 13/18
21/6 - 49/18 is 7/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 6 × 3 = 18,
21/6 = 21 × 3/6 × 3 = 63/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
49/18 = 49 × 1/18 × 1 = 49/18 - Subtract the two like fractions:
63/18 - 49/18 = 63 - 49/18 = 14/18 - After reducing the fraction, the answer is 7/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6-49/18 21/6-98/18 21/12-49/18 21/6-49/36 63/6-49/18 21/18-49/18 21/6-49/54 21/30-49/18 21/6-49/90 21/42-49/18