Subtract 15/35 from 15/12
1st number: 1 3/12, 2nd number: 15/35
15/12 - 15/35 is 23/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 35 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
15/12 = 15 × 35/12 × 35 = 525/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
15/35 = 15 × 12/35 × 12 = 180/420 - Subtract the two like fractions:
525/420 - 180/420 = 525 - 180/420 = 345/420 - After reducing the fraction, the answer is 23/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12-15/35 15/12-30/35 15/24-15/35 15/12-15/70 45/12-15/35 15/12-45/35 15/36-15/35 75/12-15/35 15/12-75/35 15/60-15/35 15/84-15/35