Subtract 12/54 from 40/15
1st number: 2 10/15, 2nd number: 12/54
40/15 - 12/54 is 22/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 15 × 18 = 270,
40/15 = 40 × 18/15 × 18 = 720/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
12/54 = 12 × 5/54 × 5 = 60/270 - Subtract the two like fractions:
720/270 - 60/270 = 720 - 60/270 = 660/270 - After reducing the fraction, the answer is 22/9
- In mixed form: 24/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15-12/54 40/15-24/54 40/30-12/54 40/15-36/54 40/45-12/54 40/15-60/54 40/75-12/54 40/15-84/54