It’d be 0.57, hope this helps.
Step-by-step explanation:
Multiplication of fractions is easiest operation. Simply multiple numerator to numerator and denominator to denominator. For example,

Addition and subtraction requires that we find a common demoninator.
For example,

The common denominator is 12. So I need to muliply each fraction to get the right denominator. 4*3 = 12.

Then we add the numerators

Then we should reduce.

Division is a little trickier because we have to flip-flop the second term and then multiply. For example: 
Answer:
Step-by-step explanation:
Original songs he has are 41.
Bought songs per week are 4.
Bought songs in 110 weeks are (4*110) = 440
Total songs he bought altogether
41 + 440