Subtract 15/81 from 98/60
1st number: 1 38/60, 2nd number: 15/81
98/60 - 15/81 is 391/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 81 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 60 × 27 = 1620,
98/60 = 98 × 27/60 × 27 = 2646/1620 - Likewise, for the 2nd fraction, since 81 × 20 = 1620,
15/81 = 15 × 20/81 × 20 = 300/1620 - Subtract the two like fractions:
2646/1620 - 300/1620 = 2646 - 300/1620 = 2346/1620 - After reducing the fraction, the answer is 391/270
- In mixed form: 1121/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/60-30/81 98/60-45/81 98/60-75/81