Answer:
b = 15/4 = 12/4 + 3/4 = 3 3/4 (in mixed number form)
Step-by-step explanation:
Let's start by converting the mixed number into an improper fraction so we can operate easily in the solving:
3 1.2 = 3 + 1/2 = 6/2 + 1/2 = 7/2
Now we solve the equation:
b - 1/4 = 7/2
add 1.4 to both sides
b = 7/2 + 1/4 = 14/4 + 1/4 = 15/4
Therefore, b = 15/4 = 12/4 + 3/4 = 3 3/4 (in mixed number form)
