Divisibility Rules

Divisibility Rules

by HSP EDU

​Why it is helpful to know divisibility rules:

• It helps to find the prime factorization of numbers

• ​It helps with finding GCF

• ​It helps with reducing fractions

​Simplify the fraction

Multiple Choice

$$\frac{76\ \div2}{84\ \div2}=$$  

• $$\frac{38}{42}$$  

• $$\frac{42}{36}$$  

• $$\frac{32}{46}$$  

• $$\frac{48}{\text{36}}$$  

Simplify the Fraction, Cont'd

Fill in the Blanks

$\frac{38\div2}{42\div2}=\ \frac{19}{ }$  

​Simplify the Fraction, Cont'd

​Divisibility Rules Contest!

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Correctly answer as many of the following questions as you can. Questions are worth 1 point each.

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​Get a score of 75% or more and win a PRIZE!

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Fill in the Blanks

Which of the following numbers is divisible by 5?

514 or 315

Multiple Choice

What is this fraction reduced to simplest form? $$\frac{60}{80}$$  

• $$\frac{6}{8}$$  

• $$\frac{2}{3}$$  

• $$\frac{3}{4}$$  

• $$\frac{3}{6}$$  

Fill in the Blanks

Which of the following numbers is divisible by 9?

837 and 931

Multiple Choice

What is this fraction reducted to the simples form? 

$$\frac{45}{75}$$  

• $$\frac{5}{9}$$  

• $$\frac{2}{3}$$  

• $$\frac{3}{5}$$  

• $$\frac{4}{3}$$  

Fill in the Blanks

Which of the following numbers is divisible by 6?

612 and 639