Add 30/18 and 63/4
1st number: 1 12/18, 2nd number: 15 3/4
30/18 + 63/4 is 209/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
30/18 = 30 × 2/18 × 2 = 60/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
63/4 = 63 × 9/4 × 9 = 567/36 - Add the two like fractions:
60/36 + 567/36 = 60 + 567/36 = 627/36 - 627/36 simplified gives 209/12
- So, 30/18 + 63/4 = 209/12
In mixed form: 175/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18+63/4 30/36+63/4 30/18+63/8 90/18+63/4 30/54+63/4 30/18+63/12 30/90+63/4 30/18+63/20 30/18+63/28