Subtract 3/28 from 45/15
1st number: 3 0/15, 2nd number: 3/28
45/15 - 3/28 is 81/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
45/15 = 45 × 28/15 × 28 = 1260/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
3/28 = 3 × 15/28 × 15 = 45/420 - Subtract the two like fractions:
1260/420 - 45/420 = 1260 - 45/420 = 1215/420 - After reducing the fraction, the answer is 81/28
- In mixed form: 225/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15-3/28 45/15-6/28 45/30-3/28 45/15-3/56 45/15-9/28 45/15-3/84 45/15-15/28 45/75-3/28 45/15-21/28