How can you turn a mix fraction into a regular fraction?

How can you turn a mix fraction into a regular fraction is lets say we have 1and3/6 you first multiply 1x3 and get 3 and you add 3+ 6 equals 9 and get 9/3 then you divide 9÷3=6 so 6/6 but if only for credit put 6/6=1

mr. graef told us it is 13 pints

step-by-step explanation:

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5