Add 42/18 and 18/63
1st number: 2 6/18, 2nd number: 18/63
42/18 + 18/63 is 55/21.
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,
18/63 = 18 × 2/63 × 2 = 36/126 - Add the two like fractions:
294/126 + 36/126 = 294 + 36/126 = 330/126 - 330/126 simplified gives 55/21
- So, 42/18 + 18/63 = 55/21
In mixed form: 213/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18+18/63 42/18+36/63 42/36+18/63 42/18+54/63 42/54+18/63 42/18+90/63 42/90+18/63