Question

which of the following is a good way to quickly determine whether 3/12 and 1/4 are equal​

Answer 1

Answer: Divide 3 into the numerator and denominator

Step-by-step explanation:

Answer 2

For this case we must indicate a form to determine if the following expressions are equal:

$\frac {3} {12}\ and\ \frac {1} {4}$

It is observed that if we multiply the numerator and denominator of the second fraction by "3" we obtain the first fraction:

$\frac {1 * 3} {4 * 3} = \frac {3} {12}$

Similarly, if we divide the numerator and denominator of the first fraction between "3" we obtain the second fraction.

$\frac {\frac {3} {3}} {\frac {12} {3}} = \frac {1} {4}$

ANswer:

Divide the numerator and denominator of the first fraction between "3"  or

Multiply the numerator and denominator of the second fraction by "3"