How do you write the fraction 9/21 in simplest form?
2 Answers
Nov 28, 2016
Explanation:
Nov 28, 2016
Explanation:
We have to find a
color(blue)"common factor" that will divide into both 9 and 21 and reduce the fraction.In this case the lowest common factor is
color(red)(3)
rArr9/21=(9÷3)/(21÷3)=3/7 This is usually written as shown below.
9/21=cancel(9)^3/cancel(21)^7=3/7larrcolor(red)" in simplest form" This process is called
color(blue)"cancelling" A fraction is in
color(red)"simplest form" when no other factor apart from 1 will divide into the numerator/denominator.