Sally has three pieces of material. The first piece is 1 yd. 2 ft. 6 in. long, the second piece is 2 yd. 1 ft. 5 in long, and the third piece is 4 yd. 2ft. 8in long. How much material does Sally have?

A. 7 yd. 1 ft. 8 in.
B. 8 yd. 4 ft. 4 in.
C. 8 yd. 11 in.
D. 9 yd. 7 in.
E. 10 yd.

Does anyone know how to calculate above?

Question

Sally has three pieces of material. The first piece is 1 yd. 2 ft. 6 in. long, the second piece is 2 yd. 1 ft. 5 in long, and the third piece is 4 yd. 2ft. 8in long. How much material does Sally have?

A. 7 yd. 1 ft. 8 in. 
B. 8 yd. 4 ft. 4 in. 
C. 8 yd. 11 in. 
D. 9 yd. 7 in. 
E. 10 yd.

Does anyone know how to calculate above?

jlastino · Answer

12 Inches = 1 foot
3 feet= 1 yard

Add the number of inches first
6+5+8 = 19
From here we have 1 foot and 7  INCHES

Add that 1 foot to the given 
2+1+2+1 = 6
Converting it would give us 2 YARDS

Add that to the given
2+1+2+4=9

So the answer is
9 yards and 7inches