Subtract 20/10 from 3/2
1st number: 1 1/2, 2nd number: 2 0/10
3/2 - 20/10 is -1/2.
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,
3/2 = 3 × 5/2 × 5 = 15/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
20/10 = 20 × 1/10 × 1 = 20/10 - Subtract the two like fractions:
15/10 - 20/10 = 15 - 20/10 = -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: 6/2-20/10 3/2-40/10 3/4-20/10 9/2-20/10 3/2-60/10 3/6-20/10 3/2-20/30 15/2-20/10 3/10-20/10 3/2-20/50 21/2-20/10 3/14-20/10 3/2-20/70