### Featured GED Math Problem Video

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## Dividing by 9 and 10 Flashcards

dividing by 9 and 10 flashcards

Download dividing by nine and ten flashcards to help learn/teach the basic math facts…

## The download is a PDF that contains both sides (front and back) of the flashcard.

You will need to check with your printer to see if you can printed double sided.  Otherwise, print the first (front) page…. then put back in the printer to print the back side.

Dividing by 9 and 10 Flashcards

## Reducing Fractions Worksheets

One method in reducing fractions is to find a common factor that can be divided evenly into both the numerator (top number) and the denominator (bottom number).

A quick way to determine a common factor is to consider the divisibility rules for 2, 3, 5, and 10.

**A number is divisible by 2 IF the last digit of the number is an even number. That is, if the last digit is a 0, 2, 4, 6, or 8.

Positive example: 346 is divisible by 2 because the last digit 6 is an even number.

Negative example: 467 is not divisible by 2 because the last digit 7 is NOT an even number.

**A number is divisible by 3 if the sum of the digits is divisible by 3.

Positive example: 246 is divisible by 3 because 2+4+6= 12 and 12 is divisible by 3.

Negative example: 211 is NOT divisible by 3 because 2+1+1= 4 and 4 is not divisible by 3.

**A number is divisible by 5 if the last digit is a “0” or “5”.

Positive example: 12,435 is divisible by 5 because the last digit is a “5”.

Negative example: 11,231 is NOT divisible by 5 because the last digit is a 1, not a “0” or “5”.

** A number is divisible by 10 if the last digit is a “0”.

Positive example: 12, 340 is divisible by 10 because the last digit is a “0”.

Negative example: 986 is NOT divisible by 10 because the last digit is a 6, not a “0”.

Remember, when you reduce fractions….. you use a form of 1. That means that both the numerator and denominator must be divisible by the SAME number.