Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$9 \frac{ c }{ 10 } \frac{ 9 }{ 5 }$$

Answer

(81*c)/50

Solution


Use this rule: \(\frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}\).
\[\frac{9c\times 9}{10\times 5}\]
Simplify  \(9c\times 9\)  to  \(81c\).
\[\frac{81c}{10\times 5}\]
Simplify  \(10\times 5\)  to  \(50\).
\[\frac{81c}{50}\]
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