Fraction Operations and Simplification

The video tutorial reviews the previous lesson on fractions, focusing on finding the lowest common denominator, borrowing in fractions, and expressing one in terms of the denominator. It explains how to reduce fractions using the greatest common factor (GCF) and provides step-by-step guidance on these processes. The tutorial aims to reinforce understanding of fractions and their manipulation.

What is the first step when dealing with fractions?

• Divide the denominators

• Multiply the numerators

• Identify the lowest common denominator

• Find the greatest common factor

How do you determine the lowest common denominator of two fractions?

• Multiply the denominators

• Subtract the denominators

• Find the least common multiple of the denominators

• Add the denominators

What is the LCD of 3/7 and 2/3?

• 6

• 9

• 14

• 21

What is the next step after finding the lowest common denominator?

• Divide the numerators

• Subtract the numerators

• Find a new numerator by adjusting with the LCD

• Add the numerators

If you have a fraction 5/6 and you need to subtract 1/3, what is the first step?

• Find the LCD

• Subtract the numerators directly

• Multiply the fractions

• Add the fractions

When subtracting fractions, what technique is used if the top number is smaller?

• Borrow from the whole number

• Multiply the numerator by two

• Divide the numerator by the denominator

• Add one to the numerator

How do you express a borrowed 'one' in terms of the denominator?

• As the denominator minus one

• As the numerator over the denominator

• As zero

• As the denominator over itself

What is the result of 35/21 - 18/21?

• 0

• 1/21

• 17/21

• 21/21

What is the purpose of finding the greatest common factor in fractions?

• To add fractions

• To multiply fractions

• To simplify fractions

• To divide fractions

How do you simplify a fraction after finding the greatest common factor?

• Add the factor to both numerator and denominator

• Divide both numerator and denominator by the factor

• Subtract the factor from both numerator and denominator

• Multiply both numerator and denominator by the factor