Subtract 7/72 from 90/3
1st number: 30 0/3, 2nd number: 7/72
90/3 - 7/72 is 2153/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 3 × 24 = 72,
90/3 = 90 × 24/3 × 24 = 2160/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
7/72 = 7 × 1/72 × 1 = 7/72 - Subtract the two like fractions:
2160/72 - 7/72 = 2160 - 7/72 = 2153/72 - In mixed form: 2965/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/3-14/72 90/6-7/72 90/3-21/72 90/9-7/72 90/3-35/72 90/15-7/72 90/3-49/72 90/21-7/72