Add 7/42 and 7/49
7/42 + 7/49 is 13/42.
Steps for adding 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,
7/42 = 7 × 7/42 × 7 = 49/294 - Likewise, for the 2nd fraction, since 49 × 6 = 294,
7/49 = 7 × 6/49 × 6 = 42/294 - Add the two like fractions:
49/294 + 42/294 = 49 + 42/294 = 91/294 - 91/294 simplified gives 13/42
- So, 7/42 + 7/49 = 13/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/42+7/49 7/42+14/49 7/84+7/49 7/42+7/98 21/42+7/49 7/42+21/49 35/42+7/49 7/42+35/49 49/42+7/49