Answer: First box 3¼, second box 3⅓, third box 3½ and fourth box 3¹/6
Step-by-step explanation: For the first expression,
12½ - 9¼
= 25/2 - 37/4 (use 4 as the LCM)
= (50 - 37)/4
=13/4
= 3¼
For the second expression
5¾ - 2 5/12
= 23/4 - 29/12 (use 12 as the LCM)
= (69 - 29)/12
= 40/12 (express 40/12 to 10/3 in it's simplest form)
= 10/3
= 3⅓
For the third expression
7 1/5 - 3 7/10
= 36/5 - 37/10 (use 10 as the LCM)
= (72 - 37)/10
= 35/10 (express 35/10 to 7/2 in it's simplest form)
= 7/2
= 3½
For the fourth expression
11⅔ - 8½
= 35/3 - 17/2
= (70 - 51)/6 (use 6 as the LCM)
= 19/6
= 3 1/6
