fraction word problem

Question

A fishing boat uses 12_3/4 gallons of fuel on a full-day fishing trip and 7_1/8 gallons of fuel on a half-day trip. Find the total number of gallons of fuel used in 28 full-day trips and 16 half-day trips.

Answer 1

12_3/4 * 28 + 7_1/8 * 16 =

51/4 * 28/1 + 57/8 * 16/1 =

71*7 + 57*2 =

497 + 114 =

497+3+111 =

611