Subtract 4/84 from 20/2
1st number: 10 0/2, 2nd number: 4/84
20/2 - 4/84 is 209/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 2 × 42 = 84,
20/2 = 20 × 42/2 × 42 = 840/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
4/84 = 4 × 1/84 × 1 = 4/84 - Subtract the two like fractions:
840/84 - 4/84 = 840 - 4/84 = 836/84 - After reducing the fraction, the answer is 209/21
- In mixed form: 920/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/2-4/84 20/2-8/84 20/4-4/84 60/2-4/84 20/2-12/84 20/6-4/84 20/2-20/84 20/10-4/84 20/2-28/84 20/14-4/84