How do you convert $$\frac{1}{2}$$ to have a denominator of 10?

Multiply the numerator and denominator by 5: $$\frac{1 \times 5}{2 \times 5} = \frac{5}{10}$$ .

How do you convert $$\frac{2}{5}$$ to have a denominator of 10?

Multiply the numerator and denominator by 2: $$\frac{2 \times 2}{5 \times 2} = \frac{4}{10}$$ .

What is the sum of $$\frac{5}{10}$$ and $$\frac{4}{10}$$ ?

The sum is $$\frac{5 + 4}{10} = \frac{9}{10}$$ .

What is the first step in adding $$\frac{3}{7} + \frac{2}{5}$$ ?

Find a common denominator for 7 and 5.

How do you convert $$\frac{3}{7}$$ to have a denominator of 35?

Multiply the numerator and denominator by 5: $$\frac{3 \times 5}{7 \times 5} = \frac{15}{35}$$ .

How do you convert $$\frac{2}{5}$$ to have a denominator of 35?

Multiply the numerator and denominator by 7: $$\frac{2 \times 7}{5 \times 7} = \frac{14}{35}$$ .

What is the sum of $$\frac{15}{35}$$ and $$\frac{14}{35}$$ ?

The sum is $$\frac{15 + 14}{35} = \frac{29}{35}$$ .

What is the sum of $$\frac{1}{3} + \frac{1}{9}$$ ?

Convert to a common denominator (9): $$\frac{3}{9} + \frac{1}{9} = \frac{4}{9}$$ .

What is the sum of $$\frac{1}{6} + \frac{1}{12}$$ ?

Convert to a common denominator (12): $$\frac{2}{12} + \frac{1}{12} = \frac{3}{12}$$ .

What is the simplified form of $$\frac{3}{12}$$ ?

The simplified form is $$\frac{1}{4}$$ .

Adding Fractions (Unlike Denominators) Flashcards

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a fraction?

Back

A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

2.

FLASHCARD QUESTION

Front

What does it mean to add fractions with unlike denominators?

Back

It means to find a common denominator before adding the fractions together.

3.

FLASHCARD QUESTION

Front

How do you find a common denominator for two fractions?

Back

You can find the least common multiple (LCM) of the two denominators.

4.

FLASHCARD QUESTION

Front

What is the least common multiple (LCM) of 2 and 5?

Back

The LCM of 2 and 5 is 10.

5.

FLASHCARD QUESTION

Front

Back

6.

FLASHCARD QUESTION

Front

Back

7.

FLASHCARD QUESTION

Front

Back

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