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A housekeeper had 3/7 of a spray bottle of a cleaning solution. She used1/9 of the solution in a day. How much of the bottle did she use?
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2 votes
A housekeeper had 3/7 of a spray bottle of a cleaning solution.

She used1/9 of the solution in a day.

How much of the bottle did she use?

User Tombul
by
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1 Answer

6 votes
3/7−1/9
and solve
(3×9)−(1×7)/7×9
27−7/63=20/63

20/63 is the answer
User MadJlzz
by
4.6k points
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