She fills it 8 times for the flour because 2 / (1/4) =<<2/(1/4)=8>>8
She fills it 4 times for the white sugar because 1 / (1/4) = <<1/(1/4)=4>>4
She fills is 2 times for the oil because (1/2) / (1/4) = <<(1/2)/(1/4)=2>>2
She fills it 1 time for the brown sugar because she needs exactly 1/4 of a cup
She fills is 15 times because 8 + 4 + 2 + 1 equals <<8+4+2+1=15>>15
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