Subtract 4/90 from 90/4
1st number: 22 2/4, 2nd number: 4/90
90/4 - 4/90 is 2021/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
90/4 = 90 × 45/4 × 45 = 4050/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
4/90 = 4 × 2/90 × 2 = 8/180 - Subtract the two like fractions:
4050/180 - 8/180 = 4050 - 8/180 = 4042/180 - After reducing the fraction, the answer is 2021/90
- In mixed form: 2241/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4-8/90 90/8-4/90 90/4-12/90 90/12-4/90 90/4-20/90 90/20-4/90 90/4-28/90 90/28-4/90