Question 986636
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The simplest way to divide by a fraction is to multiply by its reciprocal:
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{{{(5/9)/(-9/10)}}}={{{(5/9)(-10/9)=-50/81}}}={{{-0.6172}}}
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{{{(-10/9)/(-9/10)}}}={{{(-10/9)(-10/9)=100/81}}}={{{1.2346}}}