Subtract 2/84 from 30/10
1st number: 3 0/10, 2nd number: 2/84
30/10 - 2/84 is 125/42.
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,
30/10 = 30 × 42/10 × 42 = 1260/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
2/84 = 2 × 5/84 × 5 = 10/420 - Subtract the two like fractions:
1260/420 - 10/420 = 1260 - 10/420 = 1250/420 - After reducing the fraction, the answer is 125/42
- In mixed form: 241/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/10-2/84 30/10-4/84 30/20-2/84 90/10-2/84 30/10-6/84 30/10-10/84 30/50-2/84 30/10-14/84 30/70-2/84