Add 18/63 and 30/28
1st number: 18/63, 2nd number: 1 2/28
18/63 + 30/28 is 19/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
18/63 = 18 × 4/63 × 4 = 72/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
30/28 = 30 × 9/28 × 9 = 270/252 - Add the two like fractions:
72/252 + 270/252 = 72 + 270/252 = 342/252 - 342/252 simplified gives 19/14
- So, 18/63 + 30/28 = 19/14
In mixed form: 15/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/63+30/28 18/63+60/28 18/63+30/56 54/63+30/28 18/63+90/28 18/63+30/84 90/63+30/28