Subtract 27/20 from 36/10
1st number: 3 6/10, 2nd number: 1 7/20
36/10 - 27/20 is 9/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
36/10 = 36 × 2/10 × 2 = 72/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
27/20 = 27 × 1/20 × 1 = 27/20 - Subtract the two like fractions:
72/20 - 27/20 = 72 - 27/20 = 45/20 - After reducing the fraction, the answer is 9/4
- In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/10-27/20 36/10-54/20 36/20-27/20 36/10-27/40 36/10-81/20 36/30-27/20 36/10-27/60 36/50-27/20 36/70-27/20