Subtract 2/80 from 84/4
1st number: 21 0/4, 2nd number: 2/80
84/4 - 2/80 is 839/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
84/4 = 84 × 20/4 × 20 = 1680/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
2/80 = 2 × 1/80 × 1 = 2/80 - Subtract the two like fractions:
1680/80 - 2/80 = 1680 - 2/80 = 1678/80 - After reducing the fraction, the answer is 839/40
- In mixed form: 2039/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/4-4/80 84/8-2/80 84/4-6/80 84/12-2/80 84/4-10/80 84/20-2/80 84/4-14/80 84/28-2/80