Subtract 2/27 from 42/18
1st number: 2 6/18, 2nd number: 2/27
42/18 - 2/27 is 61/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
42/18 = 42 × 3/18 × 3 = 126/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
2/27 = 2 × 2/27 × 2 = 4/54 - Subtract the two like fractions:
126/54 - 4/54 = 126 - 4/54 = 122/54 - After reducing the fraction, the answer is 61/27
- In mixed form: 27/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18-2/27 42/18-4/27 42/36-2/27 42/18-2/54 42/18-6/27 42/54-2/27 42/18-2/81 42/18-10/27 42/90-2/27 42/18-14/27