Subtract 45/84 from 72/15
1st number: 4 12/15, 2nd number: 45/84
72/15 - 45/84 is 597/140.
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,
72/15 = 72 × 28/15 × 28 = 2016/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
45/84 = 45 × 5/84 × 5 = 225/420 - Subtract the two like fractions:
2016/420 - 225/420 = 2016 - 225/420 = 1791/420 - After reducing the fraction, the answer is 597/140
- In mixed form: 437/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/15-90/84 72/30-45/84 72/45-45/84 72/75-45/84