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# fractions

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how to reduce fractions
shastarb  Jan 26, 2012

#3
+91024
+10
Melody  Oct 7, 2014
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#1
+10
Divide each of them by their H.C.F. (Highest Common Factor)
Guest Dec 4, 2013
#2
+5

Kevin Bacon

Guest Oct 6, 2014
#3
+91024
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Take a look at  this site.

http://www.mathsisfun.com/simplifying-fractions.html

Melody  Oct 7, 2014
#4
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You have to divide both numerator (the upper number) and denominator (the downer number) by their Highest Common Factor (HCF). If their HCF is 1, you can't reduce : they are called COPRIME numbers.

EinsteinJr  Apr 30, 2015
#5
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E.g.

1) $$\frac{7}{21}=\frac{7\div7}{21\div7}=\frac{1}{3}$$

2)$$\frac{108}{216}=\frac{108\div108}{216\div108}=\frac{1}{2}$$

3)$$\frac{45}{150}=\frac{45\div15}{150\div15}=\frac{3}{10}$$

MaxWong  Jul 7, 2016

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