so do 8/15 times 6/5 times 1/3 so u need to multiply top and bottom like 8 times 6 times 3 equals to 48 than 15 times 5 times 3 equals to 225 so final is = 48/225 which u can reduce just multiply both by 3 so do 48 divide by 3 equals to 16 and than 225 divide by 3 which is 75 so final would be 48/225=16/75 i hope this helps=)