Add 9/45 and 16/12
1st number: 9/45, 2nd number: 1 4/12
9/45 + 16/12 is 23/15.
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,
16/12 = 16 × 15/12 × 15 = 240/180 - Add the two like fractions:
36/180 + 240/180 = 36 + 240/180 = 276/180 - 276/180 simplified gives 23/15
- So, 9/45 + 16/12 = 23/15
In mixed form: 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/45+16/12 9/45+32/12 9/90+16/12 9/45+16/24 27/45+16/12 9/45+48/12 9/45+16/36 9/45+80/12 9/45+16/60 63/45+16/12 9/45+16/84