Answer :
The best estimate of the sum of the expression given is [tex]\rm 13 \dfrac {31}{26}[/tex]
What is a Fraction ?
A fraction is written as p/q , where q [tex]\rm \ne[/tex] 0
It is asked to determine the sum of the fraction
31/4 + 17/3 + 8/18
Taking the LCM of 4 , 3 , 18
LCM of 4 , 3 ,18 is 36
Therefore
[tex]\rm \dfrac{ 31 *9 + 17 *12 + 8 *2}{36 }[/tex]
(279+204+16) /36
499 / 36
[tex]\rm 13 \dfrac {31}{26}[/tex]
Therefore the best estimate of the sum of the expression given is [tex]\rm 13 \dfrac {31}{26}[/tex].
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