Add 15/81 and 25/8
1st number: 15/81, 2nd number: 3 1/8
15/81 + 25/8 is 715/216.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 8 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
15/81 = 15 × 8/81 × 8 = 120/648 - Likewise, for the 2nd fraction, since 8 × 81 = 648,
25/8 = 25 × 81/8 × 81 = 2025/648 - Add the two like fractions:
120/648 + 2025/648 = 120 + 2025/648 = 2145/648 - 2145/648 simplified gives 715/216
- So, 15/81 + 25/8 = 715/216
In mixed form: 367/216
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