Add 1/28 and 30/18
1st number: 1/28, 2nd number: 1 12/18
1/28 + 30/18 is 143/84.
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,
1/28 = 1 × 9/28 × 9 = 9/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
30/18 = 30 × 14/18 × 14 = 420/252 - Add the two like fractions:
9/252 + 420/252 = 9 + 420/252 = 429/252 - 429/252 simplified gives 143/84
- So, 1/28 + 30/18 = 143/84
In mixed form: 159/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/28+30/18 1/28+60/18 1/56+30/18 1/28+30/36 3/28+30/18 1/28+90/18 1/84+30/18 1/28+30/54 5/28+30/18 1/28+30/90 7/28+30/18