How do you divide 6÷13?

2 Answers
Mar 11, 2018

613=18

Explanation:

We know this rule for dividing fractions:
abcd=abdc

If we write the 6 as 61 we can use this rule:

613=6113=6131=181=18

Mar 11, 2018

We can divide by a fraction by multiplying by the fraction's reciprocal.

Explanation:

A number's reciprocal can be thought of as flipping it upside down, i.e. The reciprocal of 12 is 21, and the reciprocal of 42 is 24.
Using this logic we can determine that the reciprocal of 13 is 31, or simply 3 .
Once we have found the reciprocal, it is simply a matter of multiplying out the the numbers: 63.
Therefore, 6÷13=18.

Another Example:
5÷18=581=58=40.