8 3/4 x 5 1/7 ?

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8 3/4 x 5 1/7 ?

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Answer 1 · 2018-03-16T19:06:15

$45$ $45$

Explanation:

Start by converting your mixed numbers into improper fractions. To do this, lets look at $8 \frac{3}{4}$ $8 3/4$ .

To convert a mixed number into an improper fraction, you multiply the denominator (4) by the number out in front (8) , then add the numerator (3), then put that number over the original denominator (4) So to write that out, you take $4 \cdot 8 + 3$ $4*8+3$ , which equals $35$ $35$ , so $8 \frac{3}{4} = \frac{35}{4}$ $8 3/4 = 35/4$ .
Repeat this with $5 \frac{1}{7}$ $5 1/7$ to get $\frac{36}{7}$ $36/7$ .
Now, we are able to easily multiply across:
$\frac{35}{4} \cdot \frac{36}{7} = \frac{1260}{28} = 45$ $35/4 * 36/7 = 1260/28 = 45$

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8 3/4 x 5 1/7 ?

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