Subtract 9/14 from 28/42
28/42 - 9/14 is 1/42.
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,
28/42 = 28 × 1/42 × 1 = 28/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
9/14 = 9 × 3/14 × 3 = 27/42 - Subtract the two like fractions:
28/42 - 27/42 = 28 - 27/42 = 1/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42-9/14 28/42-18/14 28/84-9/14 28/42-9/28 84/42-9/14 28/42-27/14 28/42-9/42 28/42-45/14 28/42-9/70 28/42-63/14 28/42-9/98