Answer:
A. 40.5
Step-by-step explanation:
Multiple: 45/
100
* 90 = 45 · 90/
100 · 1
= 4050/
100
= 81 · 50/
2 · 50
= 81/
2
Multiply both numerators and denominators. Result fraction keep to lowest possible denominator GCD(4050, 100) = 50. In the following intermediate step, cancel by a common factor of 50 gives 81/
2
.
In other words - forty-five one-hundredths multiplied by ninety = eighty-one halfs.
hope it helps.
