Subtract 27/10 from 28/12
1st number: 2 4/12, 2nd number: 2 7/10
28/12 - 27/10 is -11/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 10 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
28/12 = 28 × 5/12 × 5 = 140/60 - Likewise, for the 2nd fraction, since 10 × 6 = 60,
27/10 = 27 × 6/10 × 6 = 162/60 - Subtract the two like fractions:
140/60 - 162/60 = 140 - 162/60 = -22/60 - After reducing the fraction, the answer is -11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12-27/10 28/12-54/10 28/24-27/10 28/12-27/20 84/12-27/10 28/12-81/10 28/36-27/10 28/12-27/30 28/60-27/10 28/12-27/50 28/84-27/10 28/12-27/70