MCQ
The fraction which is not equal to $\frac45$ is:
- A$\frac{ 40}{ 50}$
- B$\frac{ 12}{ 15}$
- C$\frac{16}{ 20}$
- ✓$\frac{9}{ 15}$
✓
Answer
Correct option: D.
$\frac{9}{ 15}$
For finding the fraction which is not equal to $\frac{4}{5},$ we will find the fraction from the option.
which is not equivalent to $\frac45$
Now, we know that two fraction $\frac{\text{a}}{\text{b}}$ and $\frac{\text{c}}{\text{d}}$ are equivalent, if
$\Rightarrow\text{a}\times\text{b}=\text{b}\times\text{c}$
We have,
Clearly, $\frac{9}{15}$ is not equivalent to $\frac45$
which is not equivalent to $\frac45$
Now, we know that two fraction $\frac{\text{a}}{\text{b}}$ and $\frac{\text{c}}{\text{d}}$ are equivalent, if
$\Rightarrow\text{a}\times\text{b}=\text{b}\times\text{c}$
We have,
| (a) |  |
$\Rightarrow4\times50=40\times5$ | $\Rightarrow200=200$ |
| (b) |  |
$\Rightarrow4\times15=12\times5$ | $\Rightarrow60=60{}$ |
| (c) |  |
$\Rightarrow4\times20=16\times5$ | $\Rightarrow80=80$ |
| (d) |  |
$\Rightarrow4\times15=9\times5$ | $\Rightarrow60\ne45$ |
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