Subtract 49/9 from 42/18
1st number: 2 6/18, 2nd number: 5 4/9
42/18 - 49/9 is -28/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
42/18 = 42 × 1/18 × 1 = 42/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
49/9 = 49 × 2/9 × 2 = 98/18 - Subtract the two like fractions:
42/18 - 98/18 = 42 - 98/18 = -56/18 - After reducing the fraction, the answer is -28/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18-49/9 42/18-98/9 42/36-49/9 42/18-49/18 42/54-49/9 42/18-49/27 42/90-49/9 42/18-49/45 42/18-49/63