Subtract 20/5 from 3/2
1st number: 1 1/2, 2nd number: 4 0/5
3/2 - 20/5 is -5/2.
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,
3/2 = 3 × 5/2 × 5 = 15/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
20/5 = 20 × 2/5 × 2 = 40/10 - Subtract the two like fractions:
15/10 - 40/10 = 15 - 40/10 = -25/10 - After reducing the fraction, the answer is -5/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/2-20/5 3/2-40/5 3/4-20/5 3/2-20/10 9/2-20/5 3/2-60/5 3/6-20/5 3/2-20/15 15/2-20/5 3/10-20/5 3/2-20/25 21/2-20/5 3/14-20/5 3/2-20/35