Subtract 7/9 from 42/54
42/54 - 7/9 is 0/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 9 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
42/54 = 42 × 1/54 × 1 = 42/54 - Likewise, for the 2nd fraction, since 9 × 6 = 54,
7/9 = 7 × 6/9 × 6 = 42/54 - Subtract the two like fractions:
42/54 - 42/54 = 42 - 42/54 = 0/54 - The answer is 0
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/54-7/9 42/54-14/9 42/54-7/18 42/54-21/9 42/54-7/27 42/54-35/9 42/54-7/45 42/54-49/9 42/54-7/63