Subtract 35/24 from 28/42
1st number: 28/42, 2nd number: 1 11/24
28/42 - 35/24 is -19/24.
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,
28/42 = 28 × 4/42 × 4 = 112/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
35/24 = 35 × 7/24 × 7 = 245/168 - Subtract the two like fractions:
112/168 - 245/168 = 112 - 245/168 = -133/168 - After reducing the fraction, the answer is -19/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42-35/24 28/42-70/24 28/84-35/24 28/42-35/48 84/42-35/24 28/42-35/72