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Select all the common denominators fortaand7A 10OB. 20O C. 24

Select all the common denominators fortaand7A 10OB. 20O C. 24-example-1

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The first multiples of 4 and 10 are given below


\begin{gathered} 4\to4,8,12,16,20,24,28,32,36,40 \\ 10\to10,20,30,40 \end{gathered}

Therefore, the common denominators of 1/4 and 7/10 are the intersection of the two lists above; this is,


\text{common denominators}\to\mleft\lbrace20,40\mright\rbrace

Thus, the answers are options B and E

User Eric Martindale
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