Subtract 21/90 from 50/2
1st number: 25 0/2, 2nd number: 21/90
50/2 - 21/90 is 743/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
50/2 = 50 × 45/2 × 45 = 2250/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Subtract the two like fractions:
2250/90 - 21/90 = 2250 - 21/90 = 2229/90 - After reducing the fraction, the answer is 743/30
- In mixed form: 2423/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/2-42/90 50/4-21/90 50/2-63/90 50/6-21/90 50/10-21/90 50/14-21/90