Subtract 27/42 from 45/14
1st number: 3 3/14, 2nd number: 27/42
45/14 - 27/42 is 18/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
45/14 = 45 × 3/14 × 3 = 135/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
27/42 = 27 × 1/42 × 1 = 27/42 - Subtract the two like fractions:
135/42 - 27/42 = 135 - 27/42 = 108/42 - After reducing the fraction, the answer is 18/7
- In mixed form: 24/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/14-27/42 45/14-54/42 45/28-27/42 45/14-27/84 45/14-81/42 45/42-27/42 45/70-27/42 45/98-27/42