Subtract 48/42 from 3/48
1st number: 3/48, 2nd number: 1 6/42
3/48 - 48/42 is -121/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 42 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
3/48 = 3 × 7/48 × 7 = 21/336 - Likewise, for the 2nd fraction, since 42 × 8 = 336,
48/42 = 48 × 8/42 × 8 = 384/336 - Subtract the two like fractions:
21/336 - 384/336 = 21 - 384/336 = -363/336 - After reducing the fraction, the answer is -121/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/48-48/42 3/48-96/42 3/96-48/42 3/48-48/84 9/48-48/42 15/48-48/42 21/48-48/42