Subtract 4/84 from 10/5
1st number: 2 0/5, 2nd number: 4/84
10/5 - 4/84 is 41/21.
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,
10/5 = 10 × 84/5 × 84 = 840/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
4/84 = 4 × 5/84 × 5 = 20/420 - Subtract the two like fractions:
840/420 - 20/420 = 840 - 20/420 = 820/420 - After reducing the fraction, the answer is 41/21
- In mixed form: 120/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/5-4/84 10/5-8/84 30/5-4/84 10/5-12/84 10/15-4/84 50/5-4/84 10/5-20/84 10/25-4/84 70/5-4/84 10/5-28/84 10/35-4/84