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Ilia_Sergeevich [38]
3 years ago
15

Which ratio is equivalent to start fraction 3 over 7 end fraction? A. 6 to 10 B. 9:21 C. start fraction 12 over 35 end fraction

D. 7 to 3
Mathematics
1 answer:
olasank [31]3 years ago
6 0

Answer:

B. 9 : 21

Step-by-step explanation:

Multiply numerator and denominator by 3:

... 3/7 × 3/3 = 9/21 ⇒ 9 : 21

_____

Any denominator that is not a multiple of 7 will not work. 35 is a multiple of 7 (=5×7), but 12 (=4×3) is not the same multiple of 3.

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