How to add, subtract, multiply and divide fractions, 2/3 + 3/5

The video tutorial reviews adding and subtracting fractions, emphasizing the need for common denominators and equivalent fractions. It explains the concept of least common denominators and demonstrates how to add and subtract fractions. The tutorial also discusses the common mistake of using cross multiplication for multiplying fractions and clarifies its correct use in solving proportions. It further explains how to multiply fractions directly and reduce them to their simplest form. Finally, the video covers the concept of division by a number and its reciprocal, illustrating how multiplying by a reciprocal yields the same result as division.

What is the least common denominator of 3 and 5?

• 25

• 20

• 15

• 10

When adding fractions, why is it important to multiply both the numerator and the denominator?

• To simplify the fraction

• To make the fraction larger

• To create equivalent fractions

• To change the value of the fraction

Why is cross multiplication not recommended for multiplying fractions?

• It is too complicated

• It is not applicable for multiplication

• It gives incorrect results

• It is only for addition

What is the reduced form of 6/15?

• 1/3

• 3/5

• 4/5

• 2/5

What is the reciprocal of 3/5?

• 1/3

• 2/5

• 3/5

• 5/3