Subtract 81/54 from 40/14
1st number: 2 12/14, 2nd number: 1 27/54
40/14 - 81/54 is 19/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 14 × 27 = 378,
40/14 = 40 × 27/14 × 27 = 1080/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
81/54 = 81 × 7/54 × 7 = 567/378 - Subtract the two like fractions:
1080/378 - 567/378 = 1080 - 567/378 = 513/378 - After reducing the fraction, the answer is 19/14
- In mixed form: 15/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/14-81/54 40/28-81/54 40/42-81/54 40/70-81/54 40/98-81/54