Write in simplest form

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2