Add 63/28 and 30/18
1st number: 2 7/28, 2nd number: 1 12/18
63/28 + 30/18 is 47/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
63/28 = 63 × 9/28 × 9 = 567/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
30/18 = 30 × 14/18 × 14 = 420/252 - Add the two like fractions:
567/252 + 420/252 = 567 + 420/252 = 987/252 - 987/252 simplified gives 47/12
- So, 63/28 + 30/18 = 47/12
In mixed form: 311/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/28+60/18 63/56+30/18 63/28+30/36 63/28+90/18 63/84+30/18 63/28+30/54 63/28+30/90