Addition and Subtraction of Fractions

The video tutorial covers the basics of adding and subtracting fractions. It starts with simple examples of fractions with the same denominator, explaining that only numerators are added or subtracted. The tutorial then progresses to fractions with different denominators, introducing the concept of the least common multiple (LCM) to find a common denominator. Examples are provided for both addition and subtraction, including more complex problems. The video concludes by encouraging viewers to practice on their own.

When adding fractions with the same denominator, what should you do with the numerators?

• Divide them

• Subtract them

• Multiply them

• Add them together

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

• Add the numerators directly

• Find the least common multiple of the denominators

• Multiply the denominators together

• Subtract the smaller denominator from the larger one

If you have fractions 1/3 and 1/4, what is their least common multiple?

• 6

• 9

• 15

• 12

How do you handle subtraction of fractions with different denominators?

• Subtract the numerators directly

• Find the least common multiple of the denominators first

• Subtract the denominators directly

• Multiply the fractions

What is the result of subtracting 3/5 from 7 using the least common multiple method?

• Negative 11/35

• 11/35

• 21/35

• Negative 21/35