Add 42/18 and 28/63
1st number: 2 6/18, 2nd number: 28/63
42/18 + 28/63 is 25/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
42/18 = 42 × 7/18 × 7 = 294/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
28/63 = 28 × 2/63 × 2 = 56/126 - Add the two like fractions:
294/126 + 56/126 = 294 + 56/126 = 350/126 - 350/126 simplified gives 25/9
- So, 42/18 + 28/63 = 25/9
In mixed form: 27/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18+28/63 42/18+56/63 42/36+28/63 42/18+84/63 42/54+28/63 42/90+28/63