Subtract 27/10 from 32/20
1st number: 1 12/20, 2nd number: 2 7/10
32/20 - 27/10 is -11/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
32/20 = 32 × 1/20 × 1 = 32/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
27/10 = 27 × 2/10 × 2 = 54/20 - Subtract the two like fractions:
32/20 - 54/20 = 32 - 54/20 = -22/20 - After reducing the fraction, the answer is -11/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/20-27/10 32/20-54/10 32/40-27/10 32/20-27/20 96/20-27/10 32/20-81/10 32/60-27/10 32/20-27/30 32/20-27/50 32/20-27/70