Subtract 54/12 from 14/42
1st number: 14/42, 2nd number: 4 6/12
14/42 - 54/12 is -25/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
14/42 = 14 × 2/42 × 2 = 28/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
54/12 = 54 × 7/12 × 7 = 378/84 - Subtract the two like fractions:
28/84 - 378/84 = 28 - 378/84 = -350/84 - After reducing the fraction, the answer is -25/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/42-54/12 14/84-54/12 14/42-54/24 14/42-54/36 70/42-54/12 14/42-54/60 98/42-54/12 14/42-54/84