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First, make the both of them an improper fraction.

Second, reciprocal the second fraction (ex. 90/9 / 80/20 become 90/9 / 20/80)

Third, lowest term the both of them by x

ex. 90/9 / 20/80 do the denominator of the first fraction and numerator of the second fraction... do the numerator of the first fraction and the denominator of the second fraction. DN=ND

Fourth, do the cross multiplication! :)

That's all! Ask me if you don't understand a little bit. . :)

Second, reciprocal the second fraction (ex. 90/9 / 80/20 become 90/9 / 20/80)

Third, lowest term the both of them by x

ex. 90/9 / 20/80 do the denominator of the first fraction and numerator of the second fraction... do the numerator of the first fraction and the denominator of the second fraction. DN=ND

Fourth, do the cross multiplication! :)

That's all! Ask me if you don't understand a little bit. . :)

Solution: Change the mixed numbers into improper fraction.

It will be:

Solution: Rename the mixed number to improper fraction.

NOTE: Every denominator of whole numbers is always 1.

Example 3: Divide the mixed number by the fraction.

Solution: Rename the mixed number as an improper fraction.

Multiply by the reciprocal of the divisor.

Hope this helps.