Add 42/63 and 7/9
42/63 + 7/9 is 13/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
42/63 = 42 × 1/63 × 1 = 42/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
7/9 = 7 × 7/9 × 7 = 49/63 - Add the two like fractions:
42/63 + 49/63 = 42 + 49/63 = 91/63 - 91/63 simplified gives 13/9
- So, 42/63 + 7/9 = 13/9
In mixed form: 14/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/63+7/9 42/63+14/9 42/63+7/18 42/63+21/9 42/63+7/27 42/63+35/9 42/63+7/45 42/63+49/9 42/63+7/63