Mastering Fraction Operations: Adding and Subtracting Rational Expressions

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

• Multiply the numerators

• Find a common denominator

• Add the numerators directly

• Subtract the smaller denominator from the larger one

What is the equivalent fraction of 2/3 with a denominator of 12?

• 8/12

• 6/12

• 10/12

• 4/12

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

• Multiply the numerator by the denominator

• Divide the numerator by the denominator

• Add the numerator and the denominator

• Subtract the denominator from the numerator

When adding mixed numbers, what should you do after finding a common denominator for the fractions?

• Add the whole numbers and fractional parts separately

• Divide the whole numbers

• Subtract the smaller fraction from the larger one

• Multiply the whole numbers

What is the result of 2 and 1/2 plus 4 and 2/5?

• 7 and 1/10

• 6 and 9/10

• 7 and 9/10

• 6 and 1/10

Why is a common denominator necessary when subtracting fractions?

• To ensure the pieces are the same size

• To simplify the fractions

• To make the numerators equal

• To convert fractions to decimals

What is the result of 4/5 minus 2/3?

• 4/15

• 3/15

• 2/15

• 1/15

What is the first step in multiplying fractions?

• Multiply the numerators and denominators directly

• Subtract the denominators

• Add the numerators

• Find a common denominator

How do you handle mixed numbers when multiplying fractions?

• Add the whole numbers first

• Divide the whole numbers

• Convert them to improper fractions first

• Subtract the fractional parts

What does it mean to multiply by the reciprocal when dividing fractions?

• Multiply the numerator by the denominator

• Flip the second fraction and multiply

• Subtract the fractions

• Add the fractions together