Add 6/42 and 42/63
6/42 + 42/63 is 17/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
6/42 = 6 × 3/42 × 3 = 18/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
42/63 = 42 × 2/63 × 2 = 84/126 - Add the two like fractions:
18/126 + 84/126 = 18 + 84/126 = 102/126 - 102/126 simplified gives 17/21
- So, 6/42 + 42/63 = 17/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/42+42/63 6/42+84/63 6/84+42/63 18/42+42/63 30/42+42/63