Drew has 4 pieces of rope 1 meter long each he cuts each rope into fifths how many fifths will he have after cutting all the ropes

20 fifths

Explanation:
One rope is 1 m. This can be written as 5/5 meters. One rope will be cut into fifths. Assume that the number of fifths is x, therefore:
x * 1/5 = 5/5
x = 5
This means that each rope will be cut into 5 fifth

Now, for four rope, the number of fifths can be calculated as follows:
number of fifths = 5 * 4 = 20 fifths

Hope this helps :)