Answer:
0.15
Explanation:
Unary minus: -3/
8
= -3/
8
Unary minus: -2/
5
= -2/
5
Multiple: the result of step No. 1 * the result of step No. 2 = -3/
8
* (-2/
5
) = -3 · (-2)/
8 · 5
= 6/
40
= 3 · 2/
20 · 2
= 3/
20
Multiply both numerators and denominators. Result fraction keep to lowest possible denominator GCD(6, 40) = 2. In the following intermediate step, cancel by a common factor of 2 gives 3/
20
.
In other words - minus three eighths multiplied by minus two fifths is three twentieths.