Question

What is -9/10 • -2/3 ?

Answer 1

Multiplying two fractions together corresponds to multiplying together their components, so multiplying -9/10 · -2/3 looks like:

$\frac{-9}{10} \cdot \frac{-2}{3}= \frac{(-9)(-2)}{(10)(3)}$

If we rearrange the fractions, we can perform some simplification:

$\frac{(-9)(-2)}{(3)(10)} = \frac{-9}{3} \cdot \frac{-2}{10} =-3\cdot \frac{-1}{5}$

When gets us:

$\frac{(-3)(-1)}{5}= \frac{3}{5}$