Adding and Converting Fractions

The video tutorial explains how to add fractions with different denominators by finding equivalent fractions and using the lowest common multiple (LCM). It covers the concept of equivalent fractions, demonstrates the process of adding numerators while keeping denominators the same, and provides examples of converting mixed numerals to improper fractions. The tutorial emphasizes understanding the size and quantity of fractions and offers practical examples to illustrate these concepts.

What is the first step in adding fractions with different denominators?

• Add the numerators directly

• Subtract the smaller fraction from the larger one

• Find a common denominator

• Multiply the fractions

What are equivalent fractions?

• Fractions that cannot be simplified

• Fractions with the same numerator

• Fractions that look different but have the same value

• Fractions with the same denominator

When adding fractions, why do we only add the numerators?

• Because it is easier

• Because the denominators are already the same

• Because adding denominators changes the fraction size

• Because the numerators are always smaller

What happens if you add both numerators and denominators of fractions?

• You get a correct sum

• You get an equivalent fraction

• You get an incorrect result

• You simplify the fractions

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

• Multiply the numerator by the denominator

• Add the whole number to the numerator

• Subtract the numerator from the whole number

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

What is a mixed numeral?

• A fraction that cannot be simplified

• A fraction with a larger numerator than denominator

• A whole number and a fraction combined

• A fraction with the same numerator and denominator

What is the lowest common multiple used for in fraction addition?

• To convert fractions to decimals

• To find a common denominator

• To simplify fractions

• To find a common numerator

In the example of 3/4 + 1 and 2/5, what is the first step?

• Multiply the fractions

• Add the fractions directly

• Convert the mixed numeral to an improper fraction

• Find the greatest common divisor

How do you find the lowest common multiple of two numbers?

• By subtracting the smaller number from the larger one

• By adding the two numbers

• By multiplying the two numbers

• By finding the smallest number divisible by both

What is the result of adding 3/4 and 1 and 2/5 after converting to improper fractions and finding a common denominator?

• 2 and 1/20

• 1 and 3/20

• 7/5

• 43/20