One farmer takes 12 hours to plow his field, but another farmer takes 8 hours to plow the same field with an equal tractor. How long would it take them together to plow the field?
Choose the correct option:	A) 12.5 hours	B) 4 hours	C) 4.8 hours	D) 5 hours	E) 5.6 hours
First we must find the least common denominator.   1/12 + 1/8 =   2/24+3/24=5/24   They can plow the field 5/24 per hour. Now to find the actual time, Lets use T for time as a variable.   1/T = 5/24   T/1 = 24/5= 
<gadget id="calculator">24/5</gadget>
<output>24/5 = around 4.8</output>
4.8 hours   Answer is 4.8 hours
<result>C</result>
One farmer takes 12 hours to plow his field, but another farmer takes 8 hours to plow the same field with an equal tractor. How long would it take them together to plow the field?