Subtract 60/81 from 40/15
1st number: 2 10/15, 2nd number: 60/81
40/15 - 60/81 is 52/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 15 × 27 = 405,
40/15 = 40 × 27/15 × 27 = 1080/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
60/81 = 60 × 5/81 × 5 = 300/405 - Subtract the two like fractions:
1080/405 - 300/405 = 1080 - 300/405 = 780/405 - After reducing the fraction, the answer is 52/27
- In mixed form: 125/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15-60/81 40/30-60/81 40/45-60/81 40/75-60/81