Subtract 90/72 from 63/2
1st number: 31 1/2, 2nd number: 1 18/72
63/2 - 90/72 is 121/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 2 × 36 = 72,
63/2 = 63 × 36/2 × 36 = 2268/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72 - Subtract the two like fractions:
2268/72 - 90/72 = 2268 - 90/72 = 2178/72 - After reducing the fraction, the answer is 121/4
- In mixed form: 301/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/4-90/72 63/6-90/72 63/10-90/72 63/14-90/72