Subtract 3/84 from 54/15
1st number: 3 9/15, 2nd number: 3/84
54/15 - 3/84 is 499/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
54/15 = 54 × 28/15 × 28 = 1512/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
3/84 = 3 × 5/84 × 5 = 15/420 - Subtract the two like fractions:
1512/420 - 15/420 = 1512 - 15/420 = 1497/420 - After reducing the fraction, the answer is 499/140
- In mixed form: 379/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15-6/84 54/30-3/84 54/15-9/84 54/45-3/84 54/15-15/84 54/75-3/84 54/15-21/84