Question

NEED HELP ASAP!!! These math problem like this are not my strongest when dealing with math. Three boxes are stacked one on top of the other. One box is 5 feet 4 inches tall, one is 2 feet 7 inches tall, and one is 3 feet 10 inches tall. How high is the stack? Write your answer in feet and inches. Use a number less than 12 for inches.

Answer 1

5' 4" = 64"  (5x12)+4
2' 7" = 31"  (2x12)+7
3' 10" = 46"  (3x12)+10

64+31+46= 141"
141/12= 11.75= 11 3/4
12" per foot / 4 denominator from above= 3
3 numerator from above x 3 quotient from above= 9
11' 9"