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Use prime factorization to reduce each fraction 1. 22/165 2. 35/210

Sagot :

Lets find the prime factorization of 22, 165, 35 and 210. Prime factorization of a number is breaking a number down into the set of prime numbers which multiply together to result in the original number.

The prime factorization of the number 22 is:

[tex]22=2\times11[/tex]

Similarly, for 165, 35 and 210 we have

[tex]\begin{gathered} 165=3\times5\times11 \\ 35=5\times7 \\ 210=2\times3\times5\times7 \end{gathered}[/tex]

Then, we can solve the given questions.

Question 1.

[tex]\frac{22}{165}=\frac{2\times11}{3\times5\times11}[/tex]

so we can cancel out the number 11 and get

[tex]\frac{22}{165}=\frac{2}{3\times5}=\frac{2}{15}[/tex]

Then, the answer is

[tex]\frac{2}{15}[/tex]

Question 2.

[tex]\frac{35}{210}=\frac{5\times7}{2\times3\times5\times7}[/tex]

and we can cancel out the number 5 and 7, then we obtain

[tex]\frac{35}{210}=\frac{1}{2\times3}[/tex]

then, the answer is

[tex]\frac{1}{6}[/tex]