What is the Gcf of 81 and 27?
1 Answer
Dec 14, 2016
Explanation:
This method uses only
color(blue)"subtraction" to find the GCF.
•" subtract smaller number from larger number"
•" Repeat this until a common value is obtained"
•" The common value is the GCF"
" The starting numbers are 81 and 27"
rArr81-27=54rarr" numbers are now 54 and 27"
rArr54-27=27rarr" numbers are now 27 and 27"
" common value of 27 reached"
" Hence GCF = 27"