Answer:
C. 5/10
Explanation:
Using a calculator:
Divide each numerator by each denominator. The answer must be 0.5
A. 1/50 = 0.02
B. 1/5 = 0.2
C. 5/10 = 0.5
D. 5/9 = 0.555...
Answer: C. 5/10
Without a calculator.
0.5 as a fraction is 1/2. Notice the denominator, 2, is twice the numerator, 1.
The answer also must have a denominator that is twice the numerator.
A. 1/50 2 × 1 = 2, not 50
B. 1/5 2 × 1 = 2, not 5
C. 5/10 2 × 5 = 10; this is it.
D. 5/9 2 × 5 = 10, not 9
Answer: C. 5/10