Subtract 8/84 from 81/10
1st number: 8 1/10, 2nd number: 8/84
81/10 - 8/84 is 1681/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
81/10 = 81 × 42/10 × 42 = 3402/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
8/84 = 8 × 5/84 × 5 = 40/420 - Subtract the two like fractions:
3402/420 - 40/420 = 3402 - 40/420 = 3362/420 - After reducing the fraction, the answer is 1681/210
- In mixed form: 81/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/10-16/84 81/20-8/84 81/10-24/84 81/30-8/84 81/10-40/84 81/50-8/84 81/10-56/84 81/70-8/84