Yes it is 10. 
Step 1: convert the mixed number to a fraction so now it is 15/2 divided by 3/4 
Step 2: flip the second fraction so now it is 15/2 divided by 4/3
Step 3: multiply straight across so 15x4 and 2x3 
Step 4: now you have 60/6 
Step 5: reduce that and now you have 10 
I hope this helps :)