Add 70/15 and 9/81
1st number: 4 10/15, 2nd number: 9/81
70/15 + 9/81 is 43/9.
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,
70/15 = 70 × 27/15 × 27 = 1890/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
9/81 = 9 × 5/81 × 5 = 45/405 - Add the two like fractions:
1890/405 + 45/405 = 1890 + 45/405 = 1935/405 - 1935/405 simplified gives 43/9
- So, 70/15 + 9/81 = 43/9
In mixed form: 47/9
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