Subtract 98/63 from 45/75
1st number: 45/75, 2nd number: 1 35/63
45/75 - 98/63 is -43/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 63 is 1575
Next, find the equivalent fraction of both fractional numbers with denominator 1575 - For the 1st fraction, since 75 × 21 = 1575,
45/75 = 45 × 21/75 × 21 = 945/1575 - Likewise, for the 2nd fraction, since 63 × 25 = 1575,
98/63 = 98 × 25/63 × 25 = 2450/1575 - Subtract the two like fractions:
945/1575 - 2450/1575 = 945 - 2450/1575 = -1505/1575 - After reducing the fraction, the answer is -43/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/75-98/63