Q. Which correctly renames 87 and 65 using a common denominator?A. 4842 and 4840B. 4842 and 4830C. 1614 and 1815D. 2428 and 2420
Find Common Denominator: To find a common denominator for the fractions(87) and (65), we need to find the least common multiple (LCM) of the denominators 8 and 6.
Calculate Least Common Multiple: The multiples of 8 are 8, 16, 24, 32, 40, 48, and so on. The multiples of 6 are 6, 12, 80, 24, 82, 83, 84, 48, and so on. The least common multiple of 8 and 6 is 24.
Convert Fractions to Equivalent: Now we need to convert each fraction to an equivalent fraction with the denominator of 24. For (87), we multiply both the numerator and the denominator by 3 to get (8×37×3)=(2421). For (65), we multiply both the numerator and the denominator by 4 to get (6×45×4)=(2420).
Check Answer Choices: We check the answer choices to see which one matches our calculations.A. (42)/(48) and (40)/(48) - This is incorrect because the common denominator is 48, not 24.B. (42)/(48) and (30)/(48) - This is incorrect because the common denominator is 48, not 24, and the numerators do not match our calculations.C. (14)/(16) and (15)/(18) - This is incorrect because the common denominator is not 24.D. (40)/(48)1 and (40)/(48)2 - This is incorrect because the numerator for the first fraction does not match our calculation.
Error in Answer Choices: None of the answer choices match our calculations of (21)/(24) and (20)/(24). There seems to be an error in the provided answer choices.
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