Mathematics, 21.10.2021 06:00 cferguson
If Lisa were to paint her living room alone, it would take 3 hours. Her sister Rachel could do the job in 4 hours. How many hours would it take them working together? Express your answer as a fraction reduced to lowest terms, if needed.
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If Lisa were to paint her living room alone, it would take 3 hours. Her sister Rachel could do the j...
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