Subtract 24/54 from 81/30
1st number: 2 21/30, 2nd number: 24/54
81/30 - 24/54 is 203/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
81/30 = 81 × 9/30 × 9 = 729/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
24/54 = 24 × 5/54 × 5 = 120/270 - Subtract the two like fractions:
729/270 - 120/270 = 729 - 120/270 = 609/270 - After reducing the fraction, the answer is 203/90
- In mixed form: 223/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/30-48/54 81/60-24/54 81/30-72/54 81/90-24/54