Add 27/35 and 18/81
27/35 + 18/81 is 313/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 81 is 2835
Next, find the equivalent fraction of both fractional numbers with denominator 2835 - For the 1st fraction, since 35 × 81 = 2835,
27/35 = 27 × 81/35 × 81 = 2187/2835 - Likewise, for the 2nd fraction, since 81 × 35 = 2835,
18/81 = 18 × 35/81 × 35 = 630/2835 - Add the two like fractions:
2187/2835 + 630/2835 = 2187 + 630/2835 = 2817/2835 - 2817/2835 simplified gives 313/315
- So, 27/35 + 18/81 = 313/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/35+18/81 27/35+36/81 27/70+18/81 81/35+18/81 27/35+54/81 27/35+90/81