Add 63/18 and 45/28
1st number: 3 9/18, 2nd number: 1 17/28
63/18 + 45/28 is 143/28.
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,
63/18 = 63 × 14/18 × 14 = 882/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
45/28 = 45 × 9/28 × 9 = 405/252 - Add the two like fractions:
882/252 + 405/252 = 882 + 405/252 = 1287/252 - 1287/252 simplified gives 143/28
- So, 63/18 + 45/28 = 143/28
In mixed form: 53/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/18+90/28 63/36+45/28 63/18+45/56 63/54+45/28 63/18+45/84 63/90+45/28