Subtract 24/84 from 30/15
1st number: 2 0/15, 2nd number: 24/84
30/15 - 24/84 is 12/7.
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,
30/15 = 30 × 28/15 × 28 = 840/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
24/84 = 24 × 5/84 × 5 = 120/420 - Subtract the two like fractions:
840/420 - 120/420 = 840 - 120/420 = 720/420 - After reducing the fraction, the answer is 12/7
- In mixed form: 15/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/15-24/84 30/15-48/84 90/15-24/84 30/15-72/84 30/45-24/84 30/75-24/84