Add 28/12 and 16/45
1st number: 2 4/12, 2nd number: 16/45
28/12 + 16/45 is 121/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
28/12 = 28 × 15/12 × 15 = 420/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
16/45 = 16 × 4/45 × 4 = 64/180 - Add the two like fractions:
420/180 + 64/180 = 420 + 64/180 = 484/180 - 484/180 simplified gives 121/45
- So, 28/12 + 16/45 = 121/45
In mixed form: 231/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+16/45 28/12+32/45 28/24+16/45 28/12+16/90 84/12+16/45 28/12+48/45 28/36+16/45 28/12+80/45 28/60+16/45 28/84+16/45