How to add fractions when written as mixed numbers - What is homework?

This video tutorial explains how to add fractions when they are presented as mixed numbers. It begins by demonstrating the conversion of mixed numbers into improper fractions using a simple formula. The tutorial then provides an example to illustrate the conversion process. Afterward, it discusses the importance of finding the least common denominator (LCD) to add fractions with different denominators. The video concludes with the final calculation and leaves the answer as an improper fraction.

What is the first step in adding fractions when they are presented as mixed numbers?

• Add the whole numbers first

• Find the least common denominator

• Convert them to improper fractions

• Subtract the numerators

How do you convert a mixed number to an improper fraction?

• Add the numerator to the denominator

• Subtract the denominator from the whole number

• Multiply the whole number by the denominator and add the numerator

• Divide the numerator by the whole number

In the example given, what is the improper fraction form of 7 and 2/3?

• 22/3

• 23/3

• 21/3

• 20/3

What is the least common denominator (LCD) for the fractions 13/8 and 11/4?

• 8

• 16

• 12

• 4

After finding the LCD, what is the next step in adding fractions with different denominators?

• Subtract the smaller fraction from the larger one

• Add the numerators directly

• Multiply the fractions by the LCD

• Adjust each fraction to have the LCD as the denominator