Subtract 4/45 from 45/2
1st number: 22 1/2, 2nd number: 4/45
45/2 - 4/45 is 2017/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
45/2 = 45 × 45/2 × 45 = 2025/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
4/45 = 4 × 2/45 × 2 = 8/90 - Subtract the two like fractions:
2025/90 - 8/90 = 2025 - 8/90 = 2017/90 - In mixed form: 2237/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2-4/45 45/2-8/45 45/4-4/45 45/2-4/90 45/2-12/45 45/6-4/45 45/2-20/45 45/10-4/45 45/2-28/45 45/14-4/45