Subtract 30/20 from 27/2
1st number: 13 1/2, 2nd number: 1 10/20
27/2 - 30/20 is 12/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 2 × 10 = 20,
27/2 = 27 × 10/2 × 10 = 270/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
30/20 = 30 × 1/20 × 1 = 30/20 - Subtract the two like fractions:
270/20 - 30/20 = 270 - 30/20 = 240/20 - After reducing the fraction, the answer is 12/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/2-30/20 27/2-60/20 27/4-30/20 27/2-30/40 81/2-30/20 27/2-90/20 27/6-30/20 27/2-30/60 27/10-30/20 27/14-30/20