Subtract 15/90 from 72/3
1st number: 24 0/3, 2nd number: 15/90
72/3 - 15/90 is 143/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
72/3 = 72 × 30/3 × 30 = 2160/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Subtract the two like fractions:
2160/90 - 15/90 = 2160 - 15/90 = 2145/90 - After reducing the fraction, the answer is 143/6
- In mixed form: 235/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/3-30/90 72/6-15/90 72/3-45/90 72/9-15/90 72/3-75/90 72/15-15/90 72/21-15/90