Subtract 12/84 from 45/5
1st number: 9 0/5, 2nd number: 12/84
45/5 - 12/84 is 62/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 5 × 84 = 420,
45/5 = 45 × 84/5 × 84 = 3780/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
12/84 = 12 × 5/84 × 5 = 60/420 - Subtract the two like fractions:
3780/420 - 60/420 = 3780 - 60/420 = 3720/420 - After reducing the fraction, the answer is 62/7
- In mixed form: 86/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5-12/84 45/5-24/84 45/10-12/84 45/5-36/84 45/15-12/84 45/5-60/84 45/25-12/84 45/35-12/84