Subtract 3/84 from 90/4
1st number: 22 2/4, 2nd number: 3/84
90/4 - 3/84 is 629/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
90/4 = 90 × 21/4 × 21 = 1890/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
3/84 = 3 × 1/84 × 1 = 3/84 - Subtract the two like fractions:
1890/84 - 3/84 = 1890 - 3/84 = 1887/84 - After reducing the fraction, the answer is 629/28
- In mixed form: 2213/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4-6/84 90/8-3/84 90/4-9/84 90/12-3/84 90/4-15/84 90/20-3/84 90/4-21/84 90/28-3/84