Question

jack mows the lawn in 4 hours. Marylin can mow the same lawn in 3 hours. How long would it take them to mow together

Answer 1

I think its 1 5/7

Answer 2

you're right

Answer 3

\[\frac{t}{3} +\frac{t}{4} = 1\]
\[4t + 3t = 12\]
\[7t = 12\]
\[t = \frac{12}{7}\]
\[t = 1 \frac{5}{7}\]

good job!