Add 70/15 and 2/81
1st number: 4 10/15, 2nd number: 2/81
70/15 + 2/81 is 380/81.
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,
2/81 = 2 × 5/81 × 5 = 10/405 - Add the two like fractions:
1890/405 + 10/405 = 1890 + 10/405 = 1900/405 - 1900/405 simplified gives 380/81
- So, 70/15 + 2/81 = 380/81
In mixed form: 456/81
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