Add 45/12 and 28/25
1st number: 3 9/12, 2nd number: 1 3/25
45/12 + 28/25 is 487/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 25 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
45/12 = 45 × 25/12 × 25 = 1125/300 - Likewise, for the 2nd fraction, since 25 × 12 = 300,
28/25 = 28 × 12/25 × 12 = 336/300 - Add the two like fractions:
1125/300 + 336/300 = 1125 + 336/300 = 1461/300 - 1461/300 simplified gives 487/100
- So, 45/12 + 28/25 = 487/100
In mixed form: 487/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+28/25 45/12+56/25 45/24+28/25 45/12+28/50 45/12+84/25 45/36+28/25 45/12+28/75 45/60+28/25 45/84+28/25