Subtract 3/49 from 63/21
1st number: 3 0/21, 2nd number: 3/49
63/21 - 3/49 is 144/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 49 is 147
Next, find the equivalent fraction of both fractional numbers with denominator 147 - For the 1st fraction, since 21 × 7 = 147,
63/21 = 63 × 7/21 × 7 = 441/147 - Likewise, for the 2nd fraction, since 49 × 3 = 147,
3/49 = 3 × 3/49 × 3 = 9/147 - Subtract the two like fractions:
441/147 - 9/147 = 441 - 9/147 = 432/147 - After reducing the fraction, the answer is 144/49
- In mixed form: 246/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/21-6/49 63/42-3/49 63/21-3/98 63/21-9/49 63/21-15/49 63/21-21/49