Which two numbers below are equal? [Select two of the numbers below.]

eighteen over fifteen

one and three over fifteen

three and one over fifteen

thirteen over fifteen

Question

Which two numbers below are equal? [Select two of the numbers below.]

eighteen over fifteen

one and three over fifteen

three and one over fifteen

thirteen over fifteen

phoenixfire · Answer

take the one and three over fifteen and the three and one over fifteen and convert it to a single fraction. 
$$1 {3 \over 15}$$ 
1 whole is $15\over 15$ so, $${15 \over 15} + {3 \over 15}=???$$