Learn to solve a proportion with cross multiplication

The video tutorial explains how to solve an equation using cross multiplication. It begins by setting the cross products equal and then proceeds to solve the equation by multiplying and simplifying the resulting fraction. The final solution is presented as a fraction, with an option to express it as a decimal.

What is the first step in solving the equation 5X/4 = 35/8?

• Subtract 35 from both sides

• Divide both sides by 5

• Apply cross multiplication

• Add 4 to both sides

After applying cross multiplication, what equation do we get?

• 4 * 8 = 5X * 35

• 5X * 4 = 35 * 8

• 4 * 35 = 5X * 8

• 5X * 35 = 4 * 8

What is the result of multiplying 4 by 35?

• 140

• 160

• 120

• 150

How do you simplify the fraction 140/40?

• Divide both by 5

• Divide both by 10

• Divide both by 40

• Divide both by 20

What is the simplified form of 140/40?

• 3/2

• 5/2

• 7/2

• 9/2