Subtract 9/54 from 42/2
1st number: 21 0/2, 2nd number: 9/54
42/2 - 9/54 is 125/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 2 × 27 = 54,
42/2 = 42 × 27/2 × 27 = 1134/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
9/54 = 9 × 1/54 × 1 = 9/54 - Subtract the two like fractions:
1134/54 - 9/54 = 1134 - 9/54 = 1125/54 - After reducing the fraction, the answer is 125/6
- In mixed form: 205/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/2-9/54 42/2-18/54 42/4-9/54 42/2-27/54 42/6-9/54 42/2-45/54 42/10-9/54 42/2-63/54 42/14-9/54