Add 30/18 and 9/28
1st number: 1 12/18, 2nd number: 9/28
30/18 + 9/28 is 167/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
30/18 = 30 × 14/18 × 14 = 420/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
9/28 = 9 × 9/28 × 9 = 81/252 - Add the two like fractions:
420/252 + 81/252 = 420 + 81/252 = 501/252 - 501/252 simplified gives 167/84
- So, 30/18 + 9/28 = 167/84
In mixed form: 183/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18+9/28 30/18+18/28 30/36+9/28 30/18+9/56 90/18+9/28 30/18+27/28 30/54+9/28 30/18+9/84 30/18+45/28 30/90+9/28 30/18+63/28