Subtract 28/42 from 27/2
1st number: 13 1/2, 2nd number: 28/42
27/2 - 28/42 is 77/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
27/2 = 27 × 21/2 × 21 = 567/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
28/42 = 28 × 1/42 × 1 = 28/42 - Subtract the two like fractions:
567/42 - 28/42 = 567 - 28/42 = 539/42 - After reducing the fraction, the answer is 77/6
- In mixed form: 125/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/2-28/42 27/2-56/42 27/4-28/42 27/2-28/84 81/2-28/42 27/2-84/42 27/6-28/42 27/10-28/42 27/14-28/42