Add 63/42 and 6/9
1st number: 1 21/42, 2nd number: 6/9
63/42 + 6/9 is 13/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
63/42 = 63 × 3/42 × 3 = 189/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
6/9 = 6 × 14/9 × 14 = 84/126 - Add the two like fractions:
189/126 + 84/126 = 189 + 84/126 = 273/126 - 273/126 simplified gives 13/6
- So, 63/42 + 6/9 = 13/6
In mixed form: 21/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/42+12/9 63/84+6/9 63/42+6/18 63/42+18/9 63/42+6/27 63/42+30/9 63/42+6/45 63/42+42/9 63/42+6/63