Subtract 3/48 from 18/15
1st number: 1 3/15, 2nd number: 3/48
18/15 - 3/48 is 91/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
18/15 = 18 × 16/15 × 16 = 288/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
3/48 = 3 × 5/48 × 5 = 15/240 - Subtract the two like fractions:
288/240 - 15/240 = 288 - 15/240 = 273/240 - After reducing the fraction, the answer is 91/80
- In mixed form: 111/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15-3/48 18/15-6/48 18/30-3/48 18/15-3/96 54/15-3/48 18/15-9/48 18/45-3/48 90/15-3/48 18/15-15/48 18/75-3/48 18/15-21/48