Problem 1

Add 1/16 in and  3/8 in
Procedure
Set up the problem
1/16 in +  3/8 in = ________
Adjust for common denominators
1/16 + 3/8 = 1/16 + 6/16 = 7/16
Complete the addition
1/16 +  3/8 = 7/16
Solution

1/16 in +  3/8 in = 7/16 in

Problem 2

Add 2 3/4"  and  1 5/16"
Procedure
  Set up the problem 2 3/4" + 1 5/16" = _____
  Add the whole-number parts ( 2 + 3/4 ) + (1 + 5/16) = 3 + 3/4 + 5/16
  Adjust the fractions for common denominator 3 + 3/4 + 5/16 = 3 + 12/16 + 5/16
  Add the fractions 3 + 12/16 + 5/16 = 3 + 17/16
  Simplify 3 + 17/16 = 3 + 1 1/16 = 4 1/16
Solution

2 3/4" + 1 5/16" = 4 1/16"
Problem 3

Subtract 1/4 in from 3/8 in
Procedure
Set up the problem
3/8 in –  1/4 in = ________
Adjust for common denominators
3/8 –  1/4 = 3/8 –  2/8
Complete the subtraction
3/8 –  2/8  = 1/8
Solution

3/8 in –  1/4 in = 1/8 in
Problem 4

Subtract 1 3/16" from 2 1/2"
Procedure
Set up the problem
2 1/2" –  1 3/16" = ________ "
Subtract the whole numbers
( 2 +  1/2 ) – (1 +  3/16 )=  1 + 1/2 –  3/16
Adjust for common denominators
 1 + 1/2 –  3/16 = 1 + 8/16 –  3/16
Complete the subtraction
1 + 8/16 –  3/16  = 1 5/16
Solution

 1/2" –  1 3/16" =  1 5/16"