Add 70/25 and 3/81
1st number: 2 20/25, 2nd number: 3/81
70/25 + 3/81 is 383/135.
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,
70/25 = 70 × 81/25 × 81 = 5670/2025 - Likewise, for the 2nd fraction, since 81 × 25 = 2025,
3/81 = 3 × 25/81 × 25 = 75/2025 - Add the two like fractions:
5670/2025 + 75/2025 = 5670 + 75/2025 = 5745/2025 - 5745/2025 simplified gives 383/135
- So, 70/25 + 3/81 = 383/135
In mixed form: 2113/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/25+6/81 70/50+3/81 70/25+9/81 70/75+3/81 70/25+15/81 70/25+21/81