Add 9/45 and 56/12
1st number: 9/45, 2nd number: 4 8/12
9/45 + 56/12 is 73/15.
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,
9/45 = 9 × 4/45 × 4 = 36/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
56/12 = 56 × 15/12 × 15 = 840/180 - Add the two like fractions:
36/180 + 840/180 = 36 + 840/180 = 876/180 - 876/180 simplified gives 73/15
- So, 9/45 + 56/12 = 73/15
In mixed form: 413/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/45+56/12 9/90+56/12 9/45+56/24 27/45+56/12 9/45+56/36 9/45+56/60 63/45+56/12 9/45+56/84