Subtract 98/63 from 50/72
1st number: 50/72, 2nd number: 1 35/63
50/72 - 98/63 is -31/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
50/72 = 50 × 7/72 × 7 = 350/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
98/63 = 98 × 8/63 × 8 = 784/504 - Subtract the two like fractions:
350/504 - 784/504 = 350 - 784/504 = -434/504 - After reducing the fraction, the answer is -31/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: