Fraction Operations and Simplification

This video tutorial covers module 4 of the 6th grade Go Math textbook, focusing on applying the greatest common factor (GCF) and least common multiple (LCM) to fraction operations. It explains how to multiply fractions, including simplifying the results, and provides practice problems. The tutorial also covers multiplying fractions with whole numbers and using the LCM to add and subtract fractions with different denominators. The video concludes with guided practice to reinforce the concepts taught.

What is the first step in multiplying two fractions?

• Add the numerators and denominators

• Multiply the numerators and then the denominators

• Find the least common multiple

• Subtract the smaller fraction from the larger one

When simplifying the product of two fractions, what should you divide by?

• The least common multiple

• The sum of the numerators

• The greatest common factor

• The difference of the denominators

In the example of 1/6 times 3/5, which number is a common factor that can be used to simplify?

• 6

• 5

• 3

• 1

How do you convert a whole number to a fraction for multiplication?

• Divide it by 2

• Multiply it by 10

• Write it over 1

• Add it to the numerator

What is the result of multiplying a whole number by a fraction less than 1?

• A negative number

• A number equal to the whole number

• A number greater than the whole number

• A number less than the whole number

What is the least common multiple of 15 and 6?

• 45

• 15

• 60

• 30

To add fractions with different denominators, what must you first find?

• The sum of the numerators

• The greatest common factor

• The least common multiple

• The product of the denominators

What is the simplified form of 22/42?

• 22/84

• 11/42

• 22/21

• 11/21

When subtracting fractions, what is the first step?

• Find a common denominator

• Subtract the numerators directly

• Multiply the fractions

• Add the denominators

How does the greatest common factor help in fraction operations?

• It simplifies fractions

• It adds fractions

• It multiplies fractions

• It helps find a common denominator