Subtract 20/10 from 90/2
1st number: 45 0/2, 2nd number: 2 0/10
90/2 - 20/10 is 43/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
90/2 = 90 × 5/2 × 5 = 450/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
20/10 = 20 × 1/10 × 1 = 20/10 - Subtract the two like fractions:
450/10 - 20/10 = 450 - 20/10 = 430/10 - After reducing the fraction, the answer is 43/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2-40/10 90/4-20/10 90/2-60/10 90/6-20/10 90/2-20/30 90/10-20/10 90/2-20/50 90/14-20/10 90/2-20/70