Add 15/8 and 36/81
1st number: 1 7/8, 2nd number: 36/81
15/8 + 36/81 is 167/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 8 × 81 = 648,
15/8 = 15 × 81/8 × 81 = 1215/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
36/81 = 36 × 8/81 × 8 = 288/648 - Add the two like fractions:
1215/648 + 288/648 = 1215 + 288/648 = 1503/648 - 1503/648 simplified gives 167/72
- So, 15/8 + 36/81 = 167/72
In mixed form: 223/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/8+36/81 15/8+72/81 15/16+36/81 45/8+36/81 15/24+36/81 75/8+36/81 15/40+36/81 15/56+36/81