Add 18/36 and 28/63
18/36 + 28/63 is 17/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
18/36 = 18 × 7/36 × 7 = 126/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
28/63 = 28 × 4/63 × 4 = 112/252 - Add the two like fractions:
126/252 + 112/252 = 126 + 112/252 = 238/252 - 238/252 simplified gives 17/18
- So, 18/36 + 28/63 = 17/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/36+56/63 18/72+28/63 54/36+28/63 18/36+84/63 90/36+28/63