Subtract 18/48 from 15/8
1st number: 1 7/8, 2nd number: 18/48
15/8 - 18/48 is 3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 48 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 8 × 6 = 48,
15/8 = 15 × 6/8 × 6 = 90/48 - Likewise, for the 2nd fraction, since 48 × 1 = 48,
18/48 = 18 × 1/48 × 1 = 18/48 - Subtract the two like fractions:
90/48 - 18/48 = 90 - 18/48 = 72/48 - After reducing the fraction, the answer is 3/2
- In mixed form: 11/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/8-18/48 15/8-36/48 15/16-18/48 15/8-18/96 45/8-18/48 15/8-54/48 15/24-18/48 75/8-18/48 15/8-90/48 15/40-18/48 15/56-18/48