Subtract 12/84 from 75/9
1st number: 8 3/9, 2nd number: 12/84
75/9 - 12/84 is 172/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
75/9 = 75 × 28/9 × 28 = 2100/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
12/84 = 12 × 3/84 × 3 = 36/252 - Subtract the two like fractions:
2100/252 - 36/252 = 2100 - 36/252 = 2064/252 - After reducing the fraction, the answer is 172/21
- In mixed form: 84/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/9-24/84 75/18-12/84 75/9-36/84 75/27-12/84 75/9-60/84 75/45-12/84 75/63-12/84