Arithmetic Reasoning
Yesterday I presented a question on division of fractions.
The question was,
What is 8/10 divided by 1/4?
I remind the students that I tutor for the ASVAB of the importance of knowing how to perform the 4 basic operations for fractions.
In order to divide fractions, it is not necessary to find a common denominator.
Make sure you keep, change, flip to divide fractions.
Keep the first fraction, change division to multiplication and flip the second fraction over.
8/10 ¸ 1/4
8/10 x 4/1 = 32/10
32/10 is an improper fraction that needs to be reduced by dividing the denominator into the numerator.
The answer is 3 2/10 which can be reduced to 3 1/5.
