Why 4/10 and 40/100 have unlike denominators but are equivalent fractions.

2 answers:

8 0

They are equivalent fraction because both fractions have a common factor of 4/10.
You can divide 4/10 and get 1; 40/100 and get 10. Fractions are equivalent if they have common factors.

Arturiano [62]3 years ago

5 0

Because you can simplify 40/100 and get 4/10
when you divide 40/100 by ten on the den. and num. you will get 4/10

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valina [46]

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hypergeometric

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5 0

3 years ago

This rational expression is nonequivalent. 5x / 25x^4 ; x^3 / 5x^15<br> True or false?????

FromTheMoon [43]

It is nonequivalent. Figure it out this way. Think about what number has to be multiplied by both the numerator and the denominator of $\frac{5x}{25x^4}$ to get to $\frac{x^3}{5x^15}$ . It has to be the samee number for the one expression to be equivalent to the other. To get from 5x to x^3, we have to multiply by 1/5x^2. When we do that we get x^3. Good. Now we have to multiply the denominator by the same thing, 1/5x^2. $25x^4(\frac{1}{5}x^2)=5x^6$ . As you can see, they are not equivalent.