Question

What is the product of -3 1/4 × -1 1/2​

Answer 1

`4(7)/(8)`

Explanation:

`-3(1)/(4) * -1(1)/(2) = -(13)/(4) * -(3)/(2) = (39)/(8) = 4(7)/(8)`

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Answer 2

For this case we must find the product of the following expression:

`-3 \frac {1} {4} * - 1 \frac {1} {2} =`

So, we have:

`(\frac {4 * (3) +1} {4}) * (\frac {2 * (1) +1} {2}) =\\\frac {12 + 1} {4} * \frac {2 + 1} {2} =\\(- \frac {13} {4}) * (- \frac {3} {2}) =`

By law of signs of multiplication is fulfilled:

`- * - = +\\\frac {13 * 3} {4 * 2} =\\\frac {39} {8}`

ANswer:

`\frac {39} {8}`