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Add [tex]\frac{8}{9} + \frac{4}{9}[/tex]. Simplify the answer and write as a mixed number.

A. [tex]1 \frac{1}{3}[/tex]

B. [tex]\frac{2}{3}[/tex]

C. [tex]1 \frac{3}{9}[/tex]

D. [tex]\frac{12}{9}[/tex]


Sagot :

To solve the problem of adding [tex]\(\frac{8}{9} + \frac{4}{9}\)[/tex], follow these steps:

1. Ensure Common Denominators:
Both fractions, [tex]\(\frac{8}{9}\)[/tex] and [tex]\(\frac{4}{9}\)[/tex], already have the same denominator, which is 9. Therefore, we can directly add the numerators while keeping the denominator the same.

2. Add the Numerators:
Add the numerators of the two fractions:
[tex]\[ 8 + 4 = 12 \][/tex]
So, the sum of the fractions is:
[tex]\[ \frac{12}{9} \][/tex]

3. Simplify the Fraction:
If possible, simplify the fraction. [tex]\(\frac{12}{9}\)[/tex] can be simplified by dividing both the numerator and the denominator by their greatest common divisor, which is 3:
[tex]\[ \frac{12 \div 3}{9 \div 3} = \frac{4}{3} \][/tex]

4. Express as a Mixed Number:
Convert the improper fraction [tex]\(\frac{4}{3}\)[/tex] to a mixed number. We do this by dividing the numerator by the denominator to find the whole number part:
[tex]\[ 4 \div 3 = 1 \text{ remainder } 1 \][/tex]
This means that:
[tex]\[ \frac{4}{3} = 1 \frac{1}{3} \][/tex]

Hence, the sum [tex]\(\frac{8}{9} + \frac{4}{9}\)[/tex] simplifies to the mixed number [tex]\(1 \frac{1}{3}\)[/tex].

The answer is:
[tex]\[ 1 \frac{1}{3} \][/tex]