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Mathematics, 28.05.2020 17:00 patience233

Which is a valid proportion?
Three-fourths = StartFraction 21 over 28 EndFraction
StartFraction 5 over 6 EndFraction = StartFraction 29 over 30 EndFraction
StartFraction 4 over 7 EndFraction = StartFraction 16 over 49 EndFraction
Two-fifths = StartFraction 12 over 15 EndFraction

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Which is a valid proportion?
Three-fourths = StartFraction 21 over 28 EndFraction
StartF...
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