Add 81/6 and 90/25
1st number: 13 3/6, 2nd number: 3 15/25
81/6 + 90/25 is 171/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 25 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 6 × 25 = 150,
81/6 = 81 × 25/6 × 25 = 2025/150 - Likewise, for the 2nd fraction, since 25 × 6 = 150,
90/25 = 90 × 6/25 × 6 = 540/150 - Add the two like fractions:
2025/150 + 540/150 = 2025 + 540/150 = 2565/150 - 2565/150 simplified gives 171/10
- So, 81/6 + 90/25 = 171/10
In mixed form: 171/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/12+90/25 81/6+90/50 81/18+90/25 81/6+90/75 81/30+90/25 81/42+90/25