Answer: The correct answer is:
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→ [A]: " 3/3, 7/7 " ;
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→ since each ratio in this pair is equal to each other; that is:
" 3/3 = 7/7 " ;
→ Note: " 3/3 = (3÷3) / (3÷3) = 1 / 1 = 1 " ;
or: " 3/3 = 3 ÷ 3 = 1 " ;
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→ And: " 7/7 = (7÷7) / (7÷7) = 1 / 1 = 1 " ;
or: " 7/7 = 7 ÷ 7 = 1 " ;
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Thus: " 3/3 = 7/7 = 1/1 = 1 " .
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Let us consider the other answer choices:
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Choice [B]: " 1/3, 3/5 " ; is incorrect; since: " (1/3) ≠ (3/5)" .
Note: "(1/3) = 0.3333.... )" ; and: "(3/5) = 0.6 " .
0.3333... ≠ 0.6 .
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Choice [C]: " 4/3, 3/4 ", is incorrect; since: " (4/3) ≠ (3/4) " .
Note: "(4/3) = 1.33333 ...) " ; and: "(3/4) = 0.75 ".
1.3333 ≠ 0.75 .
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Choice [D]: " 6/1000, 12/1000 " ; is incorrect ;
since: "6/1000 ≠ 12/1000 " ; And:
since: "6" out of 1000" is less than: "12" out of "1000" ;
→ Specifically: 0.006 ≠ 0.012 .
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