Subtract 7/49 from 6/63
6/63 - 7/49 is -1/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 49 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 63 × 7 = 441,
6/63 = 6 × 7/63 × 7 = 42/441 - Likewise, for the 2nd fraction, since 49 × 9 = 441,
7/49 = 7 × 9/49 × 9 = 63/441 - Subtract the two like fractions:
42/441 - 63/441 = 42 - 63/441 = -21/441 - After reducing the fraction, the answer is -1/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/63-7/49 6/63-14/49 6/63-7/98 18/63-7/49 6/63-21/49 30/63-7/49 6/63-35/49 42/63-7/49