Add 25/4 and 4/81
1st number: 6 1/4, 2nd number: 4/81
25/4 + 4/81 is 2041/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 4 × 81 = 324,
25/4 = 25 × 81/4 × 81 = 2025/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
4/81 = 4 × 4/81 × 4 = 16/324 - Add the two like fractions:
2025/324 + 16/324 = 2025 + 16/324 = 2041/324 - So, 25/4 + 4/81 = 2041/324
In mixed form: 697/324
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/4+4/81 25/4+8/81 25/8+4/81 75/4+4/81 25/4+12/81 25/12+4/81 25/4+20/81 25/20+4/81 25/4+28/81 25/28+4/81