Subtract 15/14 from 54/42
1st number: 1 12/42, 2nd number: 1 1/14
54/42 - 15/14 is 3/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
54/42 = 54 × 1/42 × 1 = 54/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
15/14 = 15 × 3/14 × 3 = 45/42 - Subtract the two like fractions:
54/42 - 45/42 = 54 - 45/42 = 9/42 - After reducing the fraction, the answer is 3/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/42-30/14 54/84-15/14 54/42-15/28 54/42-45/14 54/42-15/42 54/42-75/14 54/42-15/70 54/42-15/98