Add 16/15 and 4/81
1st number: 1 1/15, 2nd number: 4/81
16/15 + 4/81 is 452/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 15 × 27 = 405,
16/15 = 16 × 27/15 × 27 = 432/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
4/81 = 4 × 5/81 × 5 = 20/405 - Add the two like fractions:
432/405 + 20/405 = 432 + 20/405 = 452/405 - So, 16/15 + 4/81 = 452/405
In mixed form: 147/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/15+4/81 16/15+8/81 16/30+4/81 48/15+4/81 16/15+12/81 16/45+4/81 80/15+4/81 16/15+20/81 16/75+4/81 16/15+28/81