Add 63/42 and 56/18
1st number: 1 21/42, 2nd number: 3 2/18
63/42 + 56/18 is 83/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 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 18 × 7 = 126,
56/18 = 56 × 7/18 × 7 = 392/126 - Add the two like fractions:
189/126 + 392/126 = 189 + 392/126 = 581/126 - 581/126 simplified gives 83/18
- So, 63/42 + 56/18 = 83/18
In mixed form: 411/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/84+56/18 63/42+56/36 63/42+56/54 63/42+56/90