Answer:
Explanation:
Given the equation
Step 1: Change all the mixed fraction to improper fractions
Step 2: Find the lowest common multiple of the denominators (2 and 10)
The lowest common multiple = 10
Step 3: Multiply all through by 10.
Step 4: Apply the subtraction law of equality. (Subtract 55)
Step 5: Apply the division law of equality. (Divide by 13)
With mental math, you can perform equations quickly and efficiently. They also help you to develop your own strategies and solve more complex math equations. Hope this helps;)