Add 18/35 and 15/81
18/35 + 15/81 is 661/945.
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,
18/35 = 18 × 81/35 × 81 = 1458/2835 - Likewise, for the 2nd fraction, since 81 × 35 = 2835,
15/81 = 15 × 35/81 × 35 = 525/2835 - Add the two like fractions:
1458/2835 + 525/2835 = 1458 + 525/2835 = 1983/2835 - 1983/2835 simplified gives 661/945
- So, 18/35 + 15/81 = 661/945
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/35+15/81 18/35+30/81 18/70+15/81 54/35+15/81 18/35+45/81 90/35+15/81 18/35+75/81