Subtract 84/80 from 90/4
1st number: 22 2/4, 2nd number: 1 4/80
90/4 - 84/80 is 429/20.
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,
90/4 = 90 × 20/4 × 20 = 1800/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
84/80 = 84 × 1/80 × 1 = 84/80 - Subtract the two like fractions:
1800/80 - 84/80 = 1800 - 84/80 = 1716/80 - After reducing the fraction, the answer is 429/20
- In mixed form: 219/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8-84/80 90/12-84/80 90/20-84/80 90/28-84/80