Question

Which is a vaild proportion? a 3/4=21/28 b 5/6=29/30 c 4/7=16/49 d 2/5=12/15

Answer 1

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Answer:

  a 3/4=21/28

Step-by-step explanation:

A valid proportion is one in which the ratios have the same value.

  (3/4)·(7/7) = 21/28

The valid proportion is ...

  3/4 = 21/28