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Korolek [52]
2 years ago
13

Which is not a proportion???​

Mathematics
2 answers:
BartSMP [9]2 years ago
7 0

Answer:

C

Step-by-step explanation:

By definition a proportion should be equal to each other and can be multiplied by the same number on the numerator and the denominator to make the second fraction.

\frac{x_1}{y_1}=\frac{x_2}{y_2}

\frac{x_1}{y_1}*\frac{z}{z}=\frac{x_2}{y_2}

A

\frac{3}{7}*\frac{3}{3}=\frac{9}{21}

So it is a proportion.

B

\frac{24}{56}/\frac{8}{8}=\frac{3}{7}

So it is a proportion.

C

\frac{3}{7}*\frac{3}{4}=\frac{9}{28}

So it is not a proportion.

D

\frac{3}{7}*\frac{4}{4}=\frac{12}{28}

frez [133]2 years ago
5 0

The answer is C. C is not a proportion.

Hope this helps!

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