Answer:
depending on what your using these are the answers to what I got:
Addition: 2 1/2
Multiplication: 135/256
Division: 2 2/5
Step-by-step explanation:
1 1/8 + 3/4 + 5/8 = 5
/2 = 2 1/2 = 2.5
or
1 1/8 x 3/4 x 5/8 = 135/256 = 0.527
or
1 1/8 ÷ 3/4 ÷ 5/8 = 12/5 = 2 2/5 = 2.4
A=4
Just divide 5 on both sides :-)