Add 15/75 and 81/24
1st number: 15/75, 2nd number: 3 9/24
15/75 + 81/24 is 143/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 24 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
15/75 = 15 × 8/75 × 8 = 120/600 - Likewise, for the 2nd fraction, since 24 × 25 = 600,
81/24 = 81 × 25/24 × 25 = 2025/600 - Add the two like fractions:
120/600 + 2025/600 = 120 + 2025/600 = 2145/600 - 2145/600 simplified gives 143/40
- So, 15/75 + 81/24 = 143/40
In mixed form: 323/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/75+81/24 15/75+81/48 45/75+81/24 15/75+81/72