Add 25/45 and 63/12
1st number: 25/45, 2nd number: 5 3/12
25/45 + 63/12 is 209/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
25/45 = 25 × 4/45 × 4 = 100/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
63/12 = 63 × 15/12 × 15 = 945/180 - Add the two like fractions:
100/180 + 945/180 = 100 + 945/180 = 1045/180 - 1045/180 simplified gives 209/36
- So, 25/45 + 63/12 = 209/36
In mixed form: 529/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/45+63/12 25/90+63/12 25/45+63/24 75/45+63/12 25/45+63/36 25/45+63/60 25/45+63/84