Subtract 42/9 from 9/49
1st number: 9/49, 2nd number: 4 6/9
9/49 - 42/9 is -659/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 9 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 49 × 9 = 441,
9/49 = 9 × 9/49 × 9 = 81/441 - Likewise, for the 2nd fraction, since 9 × 49 = 441,
42/9 = 42 × 49/9 × 49 = 2058/441 - Subtract the two like fractions:
81/441 - 2058/441 = 81 - 2058/441 = -1977/441 - After reducing the fraction, the answer is -659/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/49-42/9 9/49-84/9 9/98-42/9 9/49-42/18 27/49-42/9 9/49-42/27 45/49-42/9 9/49-42/45 63/49-42/9 9/49-42/63