Add 15/12 and 81/25
1st number: 1 3/12, 2nd number: 3 6/25
15/12 + 81/25 is 449/100.
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,
15/12 = 15 × 25/12 × 25 = 375/300 - Likewise, for the 2nd fraction, since 25 × 12 = 300,
81/25 = 81 × 12/25 × 12 = 972/300 - Add the two like fractions:
375/300 + 972/300 = 375 + 972/300 = 1347/300 - 1347/300 simplified gives 449/100
- So, 15/12 + 81/25 = 449/100
In mixed form: 449/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12+81/25 15/24+81/25 15/12+81/50 45/12+81/25 15/36+81/25 15/12+81/75 75/12+81/25 15/60+81/25 15/84+81/25