Subtract 3/48 from 28/42
28/42 - 3/48 is 29/48.
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,
28/42 = 28 × 8/42 × 8 = 224/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
3/48 = 3 × 7/48 × 7 = 21/336 - Subtract the two like fractions:
224/336 - 21/336 = 224 - 21/336 = 203/336 - After reducing the fraction, the answer is 29/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42-3/48 28/42-6/48 28/84-3/48 28/42-3/96 84/42-3/48 28/42-9/48 28/42-15/48 28/42-21/48