Write the simplest form of the ratio $15 : 45$

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Solution

The ratio $15 t o 45 = \frac{15}{45}$
HCF of $15 a n d 45 i s 15$
Dividing both the numerator and denominator by $15$
Now, $\frac{15 \div 15}{45 \div 15} = \frac{1}{3} = 1 : 3$
Hence, the simplest form of the ratio $15 : 45 i s 1 : 3$

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