What is the rule for comparing fracab and fraccb when denominators are equal and b>0?
QUESTION
What is the rule for comparing fracab and fracad when numerators are equal and b,d>0?
QUESTION
What method compares fracab and fraccd by comparing ad and bc (with b,d>0)?
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ANSWER
Cross-multiply: compare ad and bc. This method determines which fraction is larger by comparing the cross products ad and bc, where if ad>bc then ba>dc for positive denominators.