Deciding to multiply a proportion by the LCD rather than using cross multiplication

The video tutorial demonstrates how to solve a proportion using the Least Common Denominator (LCD) method. The instructor explains the process of multiplying both sides of the equation by the LCD to simplify the problem, avoiding the need for cross multiplication. The solution is then simplified by identifying the greatest common divisor, resulting in the final answer. The tutorial emphasizes the efficiency of using the LCD method for solving proportions.

What is the primary method introduced for solving proportions in this tutorial?

• Applying the Least Common Denominator

• Using the cross product

• Adding the numbers on both sides

• Dividing by the largest number

What is the LCD used in the example to simplify the equation?

• 30

• 14

• 12

• 7

Why is multiplying by the LCD preferred over using the cross product in this example?

• It is faster and involves fewer calculations

• It is more accurate

• It is the only method that works

• It avoids division

After simplifying the equation, what is the next step to find the value of T?

• Divide by the greatest common divisor

• Subtract 6 from both sides

• Multiply by 30

• Add 24 to both sides

What is the final simplified form of the fraction obtained in the tutorial?

• -5/4

• 5/6

• -6/5

• 4/5