A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number). For example, in $$\frac{3}{4}$$ , 3 is the numerator and 4 is the denominator.

What is $$\frac{3}{4} - \frac{2}{10}$$ ?

$$\frac{3}{4} - \frac{2}{10} = \frac{11}{20}$$ .

What is the difference of $$\frac{7}{8} - \frac{1}{3}$$ ?

$$\frac{7}{8} - \frac{1}{3} = \frac{13}{24}$$ .

Can you add fractions with unlike denominators directly?

No, you cannot add fractions with unlike denominators directly. You must first find a common denominator.

What is an equivalent fraction?

An equivalent fraction is a fraction that represents the same value as another fraction, even though the numerator and denominator are different. For example, $$\frac{1}{2}$$ is equivalent to $$\frac{2}{4}$$ .

What is the process to convert $$\frac{3}{4}$$ to have a denominator of 20?

To convert $$\frac{3}{4}$$ to have a denominator of 20, multiply both the numerator and denominator by 5: $$\frac{3 \times 5}{4 \times 5} = \frac{15}{20}$$ .

What is the importance of finding a common denominator?

Finding a common denominator is important because it allows you to accurately add or subtract fractions by ensuring that the fractions are expressed in terms of the same whole.

What happens if you try to add $$\frac{1}{2}$$ and $$\frac{1}{3}$$ without a common denominator?

If you try to add $$\frac{1}{2}$$ and $$\frac{1}{3}$$ without a common denominator, you will get an incorrect answer because the fractions represent different parts of different wholes.

What is the result of $$\frac{5}{6} - \frac{1}{2}$$ ?

$$\frac{5}{6} - \frac{1}{2} = \frac{1}{3}$$ .

Adding and Subtracting Fraction with Unlike Denominators Flashcards

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14 questions

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1.

FLASHCARD QUESTION

Front

What is a fraction?

Back

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

2.

FLASHCARD QUESTION

Front

What does it mean to have unlike denominators?

Back

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

3.

FLASHCARD QUESTION

Front

How do you add fractions with unlike denominators?

Back

To add fractions with unlike denominators, first find a common denominator, convert each fraction to an equivalent fraction with that denominator, and then add the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

4.

FLASHCARD QUESTION

Front

What is the least common denominator (LCD)?

Back

The least common denominator (LCD) is the smallest multiple that two or more denominators share. For example, the LCD of 4 and 10 is 20.

5.

FLASHCARD QUESTION

Front

How do you subtract fractions with unlike denominators?

Back

To subtract fractions with unlike denominators, find a common denominator, convert each fraction to an equivalent fraction with that denominator, and then subtract the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

6.

FLASHCARD QUESTION

Front

Back

The first step is to find the least common denominator (LCD) of 4 and 10, which is 20.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

7.

FLASHCARD QUESTION

Front

Back

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

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