Explanation:
Step 1: Complete the first equation
0.1 is a tenth, therefore if we have 15.3 then we have 153 tenths.
Step 2: Complete the second equation
15.3 / 3 = 5.1
0.1 is a tenth, therefore if we have 5.1 then we have 51 tenths.
Step 3: Complete the third equation
15.3 / 3 = 5.1