13 1/3 divided by 3 4/5
first lets make these mixed numbers into improper fractions
13 1/3 = 13(3) + 1 = 39 + 1 = 40/3
3 4/5 = 3(5) + 4= 19/5
now we have 40/3 divided by 19/5 well we remember from dividing fractions we just change it to multiplication and flip the second fraction.
40/3 x 5/19 = 200/57
he can bake 200/57 loaves or 3 29/57 loafs