Subtract 20/5 from 9/2
1st number: 4 1/2, 2nd number: 4 0/5
9/2 - 20/5 is 1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 5 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
9/2 = 9 × 5/2 × 5 = 45/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
20/5 = 20 × 2/5 × 2 = 40/10 - Subtract the two like fractions:
45/10 - 40/10 = 45 - 40/10 = 5/10 - After reducing the fraction, the answer is 1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/2-20/5 9/2-40/5 9/4-20/5 9/2-20/10 27/2-20/5 9/2-60/5 9/6-20/5 9/2-20/15 45/2-20/5 9/10-20/5 9/2-20/25 63/2-20/5 9/14-20/5 9/2-20/35