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Rudiy27
4 years ago
10

Do the ratios 4:15 and 15:20 form a proportion?

Mathematics
1 answer:
Alina [70]4 years ago
7 0

\bf 4:15~~=~~15:20\qquad \qquad \cfrac{4}{15}=\cfrac{15}{20}\implies \cfrac{2\cdot 2}{3\cdot 5}=\cfrac{3\cdot ~~\begin{matrix} 5 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{2\cdot 2\cdot ~~\begin{matrix} 5 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}\implies \cfrac{4}{15}\ne \cfrac{3}{4}~~\bigotimes

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