Subtract 30/54 from 72/9
1st number: 8 0/9, 2nd number: 30/54
72/9 - 30/54 is 67/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 9 × 6 = 54,
72/9 = 72 × 6/9 × 6 = 432/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
30/54 = 30 × 1/54 × 1 = 30/54 - Subtract the two like fractions:
432/54 - 30/54 = 432 - 30/54 = 402/54 - After reducing the fraction, the answer is 67/9
- In mixed form: 74/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/9-60/54 72/18-30/54 72/9-90/54 72/27-30/54 72/45-30/54 72/63-30/54