Subtract 63/49 from 12/42
1st number: 12/42, 2nd number: 1 14/49
12/42 - 63/49 is -1/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 49 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 42 × 7 = 294,
12/42 = 12 × 7/42 × 7 = 84/294 - Likewise, for the 2nd fraction, since 49 × 6 = 294,
63/49 = 63 × 6/49 × 6 = 378/294 - Subtract the two like fractions:
84/294 - 378/294 = 84 - 378/294 = -294/294 - After reducing the fraction, the answer is -1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42-63/49 12/84-63/49 12/42-63/98 36/42-63/49 60/42-63/49 84/42-63/49