Subtract 15/54 from 42/96
42/96 - 15/54 is 23/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 54 is 864
Next, find the equivalent fraction of both fractional numbers with denominator 864 - For the 1st fraction, since 96 × 9 = 864,
42/96 = 42 × 9/96 × 9 = 378/864 - Likewise, for the 2nd fraction, since 54 × 16 = 864,
15/54 = 15 × 16/54 × 16 = 240/864 - Subtract the two like fractions:
378/864 - 240/864 = 378 - 240/864 = 138/864 - After reducing the fraction, the answer is 23/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/96-15/54 42/96-30/54 42/96-45/54 42/96-75/54