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Simplify : 8 (1)/(3)-4(5)/(9)+1/9-5(1)/(...

Simplify : `8 (1)/(3)-4(5)/(9)+1/9-5(1)/(3)+2(1)/(3)-6(1)/(9)+1`

A

`-4(2)/(9)`

B

`-2(2)/(9)`

C

`-2(1)/(3)`

D

`-4(2)/(3)`

Text Solution

AI Generated Solution

The correct Answer is:
To simplify the expression \( 8 \frac{1}{3} - 4 \frac{5}{9} + \frac{1}{9} - 5 \frac{1}{3} + 2 \frac{1}{3} - 6 \frac{1}{9} + 1 \), we will follow these steps: ### Step 1: Convert Mixed Numbers to Improper Fractions - \( 8 \frac{1}{3} = \frac{8 \times 3 + 1}{3} = \frac{24 + 1}{3} = \frac{25}{3} \) - \( 4 \frac{5}{9} = \frac{4 \times 9 + 5}{9} = \frac{36 + 5}{9} = \frac{41}{9} \) - \( 5 \frac{1}{3} = \frac{5 \times 3 + 1}{3} = \frac{15 + 1}{3} = \frac{16}{3} \) - \( 2 \frac{1}{3} = \frac{2 \times 3 + 1}{3} = \frac{6 + 1}{3} = \frac{7}{3} \) - \( 6 \frac{1}{9} = \frac{6 \times 9 + 1}{9} = \frac{54 + 1}{9} = \frac{55}{9} \) - \( 1 = \frac{1}{1} = \frac{9}{9} \) Now the expression becomes: \[ \frac{25}{3} - \frac{41}{9} + \frac{1}{9} - \frac{16}{3} + \frac{7}{3} - \frac{55}{9} + \frac{9}{9} \] ### Step 2: Find a Common Denominator The common denominator for the fractions with denominators 3 and 9 is 9. We will convert all fractions to have a denominator of 9: - \( \frac{25}{3} = \frac{25 \times 3}{3 \times 3} = \frac{75}{9} \) - \( \frac{41}{9} \) remains \( \frac{41}{9} \) - \( \frac{1}{9} \) remains \( \frac{1}{9} \) - \( \frac{16}{3} = \frac{16 \times 3}{3 \times 3} = \frac{48}{9} \) - \( \frac{7}{3} = \frac{7 \times 3}{3 \times 3} = \frac{21}{9} \) - \( \frac{55}{9} \) remains \( \frac{55}{9} \) - \( \frac{9}{9} \) remains \( \frac{9}{9} \) Now the expression is: \[ \frac{75}{9} - \frac{41}{9} + \frac{1}{9} - \frac{48}{9} + \frac{21}{9} - \frac{55}{9} + \frac{9}{9} \] ### Step 3: Combine the Fractions Combine all the fractions over the common denominator: \[ \frac{75 - 41 + 1 - 48 + 21 - 55 + 9}{9} \] Calculating the numerator: \[ 75 - 41 = 34 \] \[ 34 + 1 = 35 \] \[ 35 - 48 = -13 \] \[ -13 + 21 = 8 \] \[ 8 - 55 = -47 \] \[ -47 + 9 = -38 \] So, we have: \[ \frac{-38}{9} \] ### Step 4: Convert to Mixed Number To convert \( \frac{-38}{9} \) to a mixed number: - Divide \( 38 \) by \( 9 \): \( 38 \div 9 = 4 \) remainder \( 2 \). - So, \( \frac{-38}{9} = -4 \frac{2}{9} \). ### Final Answer The simplified expression is: \[ -4 \frac{2}{9} \]
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