Watch videos with subtitles in your language, upload your videos, create your own subtitles! Click here to learn more on "how to Dotsub"

2.Topic 1-Video 3

0 (0 Likes / 0 Dislikes)
Sometime students struggle when they are beginners at reducing fractions. Students are usually more comfortable with multiplication, versus division. Therefore, we are going to use multiplication to reduce our fraction. First, you must find a common factor of the numerator and the denominator of the given fraction. In this case, a common factor of 32 and 80 is 8. So what we're going to do is we're going to write the common factor of 8 on the top and the bottom of the new fraction bar. And, then we're going to multiply each of the 8s by the number that would produce the numerator and the denominator of the given fraction. 8 times 4 is 32. And, 8 times 10 is 80. The next step in this process is to simply cross out the common factor. Then you must examine the fraction that we have left, in this case four tenths, and ask yourself, "Is there a common factor that remains of the 4 and the 10?" If there is a common factor remaining of the new fraction, then you can reduce further. Because, 2 is a common factor of 4 and 10, I'm going to write a 2 on the top and a 2 on the bottom, and multiply those common factors by the numbers that will produce the numerator and the denominator of the fraction four tenths. What we'll have remaining is two fifths. If there are no common factors remaining of the numerator and the denominator, we are reduced to the lowest terms. So, we would say that thirty-two eightieths in the lowest terms is two fifths. Now, notice how at first, we did not reduce all the way. We only reduced some of the way, but, eventually we kept examining our new fraction, and making sure that we could reduce even further.

Video Details

Duration: 2 minutes and 3 seconds
Language: English
License: Dotsub - Standard License
Genre: None
Views: 9
Posted by: pgtranscribes on Apr 23, 2015

2.Topic 1-Video 3

Caption and Translate

    Sign In/Register for Dotsub to translate this video.