Add 63/42 and 63/98
1st number: 1 21/42, 2nd number: 63/98
63/42 + 63/98 is 15/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 98 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 42 × 7 = 294,
63/42 = 63 × 7/42 × 7 = 441/294 - Likewise, for the 2nd fraction, since 98 × 3 = 294,
63/98 = 63 × 3/98 × 3 = 189/294 - Add the two like fractions:
441/294 + 189/294 = 441 + 189/294 = 630/294 - 630/294 simplified gives 15/7
- So, 63/42 + 63/98 = 15/7
In mixed form: 21/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/84+63/98