Add 63/45 and 12/9
1st number: 1 18/45, 2nd number: 1 3/9
63/45 + 12/9 is 41/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
63/45 = 63 × 1/45 × 1 = 63/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
12/9 = 12 × 5/9 × 5 = 60/45 - Add the two like fractions:
63/45 + 60/45 = 63 + 60/45 = 123/45 - 123/45 simplified gives 41/15
- So, 63/45 + 12/9 = 41/15
In mixed form: 211/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/45+24/9 63/90+12/9 63/45+12/18 63/45+36/9 63/45+12/27 63/45+60/9 63/45+12/45 63/45+84/9 63/45+12/63