Add 63/45 and 15/18
1st number: 1 18/45, 2nd number: 15/18
63/45 + 15/18 is 67/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
63/45 = 63 × 2/45 × 2 = 126/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
15/18 = 15 × 5/18 × 5 = 75/90 - Add the two like fractions:
126/90 + 75/90 = 126 + 75/90 = 201/90 - 201/90 simplified gives 67/30
- So, 63/45 + 15/18 = 67/30
In mixed form: 27/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/45+30/18 63/90+15/18 63/45+15/36 63/45+45/18 63/45+15/54 63/45+75/18 63/45+15/90