Add 75/5 and 3/81
1st number: 15 0/5, 2nd number: 3/81
75/5 + 3/81 is 406/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 5 × 81 = 405,
75/5 = 75 × 81/5 × 81 = 6075/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
3/81 = 3 × 5/81 × 5 = 15/405 - Add the two like fractions:
6075/405 + 15/405 = 6075 + 15/405 = 6090/405 - 6090/405 simplified gives 406/27
- So, 75/5 + 3/81 = 406/27
In mixed form: 151/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/5+6/81 75/10+3/81 75/5+9/81 75/15+3/81 75/5+15/81 75/25+3/81 75/5+21/81 75/35+3/81