Subtract 42/54 from 96/21
1st number: 4 12/21, 2nd number: 42/54
96/21 - 42/54 is 239/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 21 × 18 = 378,
96/21 = 96 × 18/21 × 18 = 1728/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
42/54 = 42 × 7/54 × 7 = 294/378 - Subtract the two like fractions:
1728/378 - 294/378 = 1728 - 294/378 = 1434/378 - After reducing the fraction, the answer is 239/63
- In mixed form: 350/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/21-84/54 96/42-42/54 96/63-42/54