Subtract 20/90 from 10/2
1st number: 5 0/2, 2nd number: 20/90
10/2 - 20/90 is 43/9.
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,
10/2 = 10 × 45/2 × 45 = 450/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
20/90 = 20 × 1/90 × 1 = 20/90 - Subtract the two like fractions:
450/90 - 20/90 = 450 - 20/90 = 430/90 - After reducing the fraction, the answer is 43/9
- In mixed form: 47/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/2-20/90 10/2-40/90 10/4-20/90 30/2-20/90 10/2-60/90 10/6-20/90 50/2-20/90 70/2-20/90 10/14-20/90