Three boxes are stacked one on top of the other. One box is 3 feet 6 inches tall, one is 4 feet 10 inches tall, and one is 4 feet 5 inches tall. How high is the stack?
First, convert all measurements to inches. Box 1: 3ft(12in)=36in+6in=42in Box 2: 4ft(12in)=48in+10in=58in Box 3: 4ft(12in)=48in+5in=53in Now, add the heights together. 42in+58in+53in=153in Finally, convert added height to feet. 153in/12in=12 with a remainder of 9, so your final answer is 12ft 9in