Kacie Ellen can mow a lawn in 2 hours. Mary can mow the same lawn in 1.5 hours. How long would it take them to mow the lawn together? Thank you. Hi Kacie,To compare Ellen and Mary it would be helpful to see how many lawns they can mow in the same number of hours. Since 6 is a multiple of 2 and 6 is a multiple on 1.5 I decided to see how many lawns each could mow in 6 hours.
Thus together they could mow 2 + 4 = 7 lawns in 6 hours. That is, together they mow at the rate of 7 lawns in 6 hours or hours per lawn. Cheers,Penny
