Subtract 28/7 from 7/63
1st number: 7/63, 2nd number: 4 0/7
7/63 - 28/7 is -35/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
7/63 = 7 × 1/63 × 1 = 7/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
28/7 = 28 × 9/7 × 9 = 252/63 - Subtract the two like fractions:
7/63 - 252/63 = 7 - 252/63 = -245/63 - After reducing the fraction, the answer is -35/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/63-28/7 7/63-56/7 7/63-28/14 21/63-28/7 7/63-84/7 7/63-28/21 35/63-28/7 7/63-28/35 49/63-28/7 7/63-28/49