Question

5 5by6 +3 9by10+2 4by15

Answer 1

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Answer 2

Convert the mixed fraction into improper fractions:
$5 \frac{5}{6} + 3 \frac{9}{10} + 2 \frac{4}{15} \\ \\ = \frac{5 \times 6 + 5}{6} + \frac{3 \times 10 + 9}{10} + \frac{2 \times 15 + 4}{15}$

$= \frac{30 + 5}{6} + \frac{30 + 9}{10} + \frac{30 + 4}{15} \\ \\ = \frac{3 5}{6} + \frac{39}{10} + \frac{34}{15}$

Now, take LCM of denominators and add.

$= \frac{35 \times 5 + 39 \times 3 + 34 \times 2}{30} \\ \\ = \frac{175 + 117 + 68}{30}$

$= \frac{360}{30} \\ \\ = 12$