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23-10-2018
Mathematics

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Find the ratio a:b, if it is given that a/5 = b/7

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23-10-2018

[tex]\bf \cfrac{a}{5}=\cfrac{b}{7}\implies \stackrel{cross-multiplying}{7a=5b}\implies \cfrac{a}{b}=\cfrac{5}{7}~\hfill a:b\qquad 5:7[/tex]

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