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Express the fractions [tex]\frac{1}{2}, \frac{3}{16},[/tex] and [tex]\frac{7}{8}[/tex] with an LCD.

A. [tex]\frac{1}{4}, \frac{3}{4},[/tex] and [tex]\frac{7}{4}[/tex]

B. [tex]\frac{1}{32}, \frac{3}{32},[/tex] and [tex]\frac{7}{32}[/tex]

C. [tex]\frac{4}{8}, \frac{6}{8},[/tex] and [tex]\frac{14}{8}[/tex]

D. [tex]\frac{8}{16}, \frac{3}{16},[/tex] and [tex]\frac{14}{16}[/tex]


Sagot :

To solve the problem of expressing the fractions [tex]\( \frac{1}{2}, \frac{3}{16}, \text{and} \frac{7}{8} \)[/tex] with a common denominator, we need to follow these steps:

1. Identify the Least Common Denominator (LCD):
- The denominators of the given fractions are 2, 16, and 8.
- The least common denominator (LCD) is the smallest number that all the denominators can divide into. The LCD of 2, 16, and 8 is 16.

2. Convert each fraction to an equivalent fraction with the LCD:
- For [tex]\( \frac{1}{2} \)[/tex]:
- Multiply both the numerator and denominator by the factor needed to get the LCD (16).
- [tex]\( \frac{1}{2} = \frac{1 \times 8}{2 \times 8} = \frac{8}{16} \)[/tex].

- For [tex]\( \frac{3}{16} \)[/tex]:
- The denominator is already 16, so the fraction remains the same.
- [tex]\( \frac{3}{16} \)[/tex].

- For [tex]\( \frac{7}{8} \)[/tex]:
- Multiply both the numerator and denominator by the factor needed to get the LCD (16).
- [tex]\( \frac{7}{8} = \frac{7 \times 2}{8 \times 2} = \frac{14}{16} \)[/tex].

3. Combine the equivalent fractions:
- We have converted the fractions to:
- [tex]\( \frac{1}{2} = \frac{8}{16} \)[/tex]
- [tex]\( \frac{3}{16} \)[/tex]
- [tex]\( \frac{7}{8} = \frac{14}{16} \)[/tex]

4. Select the best answer from the given options:
- Option D states [tex]\( \frac{8}{16}, \frac{3}{16}, \text{and} \frac{14}{16} \)[/tex].

Therefore, the best answer is:
[tex]\[ \boxed{8 / 16, 3 / 16, and 14 / 16} \][/tex]

So, the correct option is:
[tex]\[ \text{Option D: } \frac{8}{16}, \frac{3}{16}, \text{and} \frac{14}{16} \][/tex]