Mathematics, 05.07.2020 14:01, leahphi

Betty can mow a lawn in 60 minutes. Melissa can mow the same lawn in 30 minutes. How long does it take for both Betty and Melissa to mow the lawn if they are working together? Express your answer as a reduced fraction.

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Betty can mow a lawn in 60 minutes. Melissa can mow the same lawn in 30 minutes. How long does it ta...