1 5/8 ÷ 3/8
1)first make everything into improper fraction.
13/8 ÷ 3/8
*for the improper fraction, the 1 for this case equal 8/8. 8/8 + 5/8 = 13/8
2) flip the second number (in this case 3/8) upside down and make the division sign multiplication.
13/8 x 8/3
3) multiply
104/24
simplify
104 ÷ 4 26 13
---------- = ----- = ----
24 ÷ 4 6 3
your answer is 13/3 or 4 1/3
hope this helps :D