Subtract 7/63 from 98/45
1st number: 2 8/45, 2nd number: 7/63
98/45 - 7/63 is 31/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
98/45 = 98 × 7/45 × 7 = 686/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
7/63 = 7 × 5/63 × 5 = 35/315 - Subtract the two like fractions:
686/315 - 35/315 = 686 - 35/315 = 651/315 - After reducing the fraction, the answer is 31/15
- In mixed form: 21/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/45-14/63 98/90-7/63 98/45-21/63 98/45-35/63 98/45-49/63