Which expression represents another method of computing the product given below?

-3/8 x 1 1/2

1 answer

To compute the product of \(-\frac{3}{8}\) and \(1 \frac{1}{2}\), we can first convert the mixed number \(1 \frac{1}{2}\) into an improper fraction.

  1. Convert \(1 \frac{1}{2}\) to an improper fraction: \[ 1 \frac{1}{2} = 1 + \frac{1}{2} = \frac{2}{2} + \frac{1}{2} = \frac{3}{2} \]

  2. Now, rewrite the expression: \[ -\frac{3}{8} \times \frac{3}{2} \]

  3. Next, we can multiply the fractions directly: \[ = \frac{-3 \times 3}{8 \times 2} \] \[ = \frac{-9}{16} \]

Thus, another method to compute the product \(-\frac{3}{8} \times 1 \frac{1}{2}\) can be expressed as: \[ -\frac{3}{8} \times \frac{3}{2} \]

Alternatively, you can compute it as: \[ -\frac{3 \times 3}{8 \times 2} = \frac{-9}{16} \]

So, both forms of the expression yield the same result.