Add 27/15 and 30/81
1st number: 1 12/15, 2nd number: 30/81
27/15 + 30/81 is 293/135.
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,
27/15 = 27 × 27/15 × 27 = 729/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
30/81 = 30 × 5/81 × 5 = 150/405 - Add the two like fractions:
729/405 + 150/405 = 729 + 150/405 = 879/405 - 879/405 simplified gives 293/135
- So, 27/15 + 30/81 = 293/135
In mixed form: 223/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15+30/81 27/15+60/81 27/30+30/81 81/15+30/81 27/15+90/81 27/45+30/81 27/75+30/81