Its not A because 108 and 57 are both divisible by 3
if you write  the numbers in prime factor form you will see the correct optiuon
for example B:-
21 = 3* 7 183 = 3 * 61 Â Â Â 3 is common to both factors so its not B
Answer from: Quest
Not so sure about this one sorry.
Answer from: Quest
Number 2 is a 2/5 number 4 is 1.4
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