Subtract 60/84 from 30/15
1st number: 2 0/15, 2nd number: 60/84
30/15 - 60/84 is 9/7.
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,
60/84 = 60 × 5/84 × 5 = 300/420 - Subtract the two like fractions:
840/420 - 300/420 = 840 - 300/420 = 540/420 - After reducing the fraction, the answer is 9/7
- In mixed form: 12/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/15-60/84 90/15-60/84 30/45-60/84 30/75-60/84