kelinielsen
kelinielsen kelinielsen
  • 12-11-2015
  • Mathematics
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does1/3 & 7/21 form a proportion

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crisforp
crisforp crisforp
  • 12-11-2015
Because 1 * 21 = 3 * 7 ( 21  = 21 ) , 1/3&7/21 form a proportion.
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