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Answer:
3/10 is greater. and the bottom part is 30
Step-by-step explanation:
because 1/6= 0.2 and 3/10=0.3.
0.2>0.3 therefore 3/10 is greater.
and to find the common denominator you just have to list out the number of and 10.
6,12,18,24,30
10,20,30
as you can see 30 is the common denominator.