Solving a rational Equation

The video tutorial explains how to eliminate fractions in equations by determining and using the least common denominator (LCD). It introduces the concept of cross multiplication, highlighting its appropriate use and limitations. The tutorial also demonstrates solving equations using the distributive property, providing a step-by-step approach to handling variables on both sides of an equation.

What is the first step in eliminating fractions from an equation?

• Find the least common denominator

• Add the fractions together

• Subtract the fractions

• Divide each term by the denominator

What is the purpose of multiplying each term by the LCD?

• To add more fractions

• To eliminate the denominators

• To simplify the numerators

• To increase the value of the equation

When can cross multiplication be used effectively?

• When the equation has no fractions

• When the equation is a proportion

• When there are multiple terms with addition

• When the denominators are the same

Why is cross multiplication not suitable for equations with addition or subtraction?

• It only works with single terms

• It requires equal denominators

• It only applies to proportions

• It complicates the equation

What is the final step in solving the equation after applying the distributive property?

• Multiply all terms by the LCD again

• Subtract the variable terms to one side

• Divide each term by the variable

• Add the terms on both sides