Subtract 9/24 from 25/42
25/42 - 9/24 is 37/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
25/42 = 25 × 4/42 × 4 = 100/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
9/24 = 9 × 7/24 × 7 = 63/168 - Subtract the two like fractions:
100/168 - 63/168 = 100 - 63/168 = 37/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42-9/24 25/42-18/24 25/84-9/24 25/42-9/48 75/42-9/24 25/42-27/24 25/42-9/72 25/42-45/24 25/42-63/24