Add 30/25 and 10/81
1st number: 1 5/25, 2nd number: 10/81
30/25 + 10/81 is 536/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 81 is 2025
Next, find the equivalent fraction of both fractional numbers with denominator 2025 - For the 1st fraction, since 25 × 81 = 2025,
30/25 = 30 × 81/25 × 81 = 2430/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
10/81 = 10 × 25/81 × 25 = 250/2025 - Add the two like fractions:
2430/2025 + 250/2025 = 2430 + 250/2025 = 2680/2025 - 2680/2025 simplified gives 536/405
- So, 30/25 + 10/81 = 536/405
In mixed form: 1131/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/25+10/81 30/25+20/81 30/50+10/81 90/25+10/81 30/25+30/81 30/75+10/81 30/25+50/81 30/25+70/81