Subtract 25/48 from 9/42
9/42 - 25/48 is -103/336.
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,
9/42 = 9 × 8/42 × 8 = 72/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
25/48 = 25 × 7/48 × 7 = 175/336 - Subtract the two like fractions:
72/336 - 175/336 = 72 - 175/336 = -103/336
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/42-25/48 9/42-50/48 9/84-25/48 9/42-25/96 27/42-25/48 9/42-75/48 45/42-25/48 63/42-25/48