Subtract 49/9 from 42/16
1st number: 2 10/16, 2nd number: 5 4/9
42/16 - 49/9 is -203/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 9 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 16 × 9 = 144,
42/16 = 42 × 9/16 × 9 = 378/144 - Likewise, for the 2nd fraction, since 9 × 16 = 144,
49/9 = 49 × 16/9 × 16 = 784/144 - Subtract the two like fractions:
378/144 - 784/144 = 378 - 784/144 = -406/144 - After reducing the fraction, the answer is -203/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/16-49/9 42/16-98/9 42/32-49/9 42/16-49/18 42/48-49/9 42/16-49/27 42/80-49/9 42/16-49/45 42/16-49/63