Example

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

Question

$$\frac{ 3 }{ 5 } and \frac{ 7 }{ 8 }$$

Answer

(21*a*n*d)/40

Solution


Use this rule: \(\frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}\).
\[\frac{3and\times 7}{5\times 8}\]
Simplify  \(3and\times 7\)  to  \(21and\).
\[\frac{21and}{5\times 8}\]
Simplify  \(5\times 8\)  to  \(40\).
\[\frac{21and}{40}\]
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