Subtract 42/49 from 5/9
5/9 - 42/49 is -19/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 49 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 9 × 49 = 441,
5/9 = 5 × 49/9 × 49 = 245/441 - Likewise, for the 2nd fraction, since 49 × 9 = 441,
42/49 = 42 × 9/49 × 9 = 378/441 - Subtract the two like fractions:
245/441 - 378/441 = 245 - 378/441 = -133/441 - After reducing the fraction, the answer is -19/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/9-42/49 5/9-84/49 5/18-42/49 5/9-42/98 15/9-42/49 5/27-42/49 25/9-42/49 5/45-42/49 35/9-42/49 5/63-42/49