Subtract 1/48 from 15/42
15/42 - 1/48 is 113/336.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
15/42 = 15 × 8/42 × 8 = 120/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
1/48 = 1 × 7/48 × 7 = 7/336 - Subtract the two like fractions:
120/336 - 7/336 = 120 - 7/336 = 113/336
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/42-1/48 15/42-2/48 15/84-1/48 15/42-1/96 45/42-1/48 15/42-3/48 75/42-1/48 15/42-5/48 15/42-7/48