Adding and Simplifying Fractions

This video tutorial explains how to add signed fractions, both with like and unlike denominators. It covers the process of finding a common denominator, adding numerators, and simplifying the result. The tutorial includes several examples to illustrate these concepts, emphasizing the importance of the least common denominator (LCD) when dealing with fractions that have different denominators.

What is the first step when adding fractions with like denominators?

• Multiply the denominators

• Add the numerators

• Subtract the numerators

• Find the least common denominator

How do you simplify the fraction -3/9?

• -1/9

• -3/3

• -3/1

• -1/3

What is the least common denominator (LCD) of 1/4 and 1/2?

• 8

• 6

• 4

• 2

When adding fractions with unlike denominators, what is the first step?

• Multiply the denominators

• Subtract the numerators

• Add the numerators

• Find the least common multiple of the denominators

What is the result of adding -6/7 and 5/14?

• -1/5

• -1/4

• -1/3

• -1/2

What is the least common multiple of 6 and 8?

• 12

• 18

• 24

• 30

What is the sum of -5/6 and -1/8?

• -21/24

• -20/24

• -22/24

• -23/24

What is the least common multiple of 10 and 25?

• 50

• 30

• 40

• 60

What is the result of adding 3/10 and -1/25?

• 12/50

• 11/50

• 13/50

• 10/50

How do you express -3 as a fraction with a denominator of 12?

• -36/12

• -24/12

• -12/12

• -48/12