Which expression is A, in order to have a true equation A=5−11/3 ?(1 point)

Responses

A=1 2/3+1/3
negative 1 Start Fraction 2 over 3 End Fraction minus Start Fraction 1 over 3 End Fraction

A=−123+13
negative 1 Start Fraction 2 over 3 End Fraction plus Start Fraction 1 over 3 End Fraction

A=153+13
Start Fraction 15 over 3 End Fraction plus Start Fraction 1 over 3 End Fraction

A=123−13
1 Start Fraction 2 over 3 End Fraction minus Start Fraction 1 over 3 End Fraction

1 answer

To find an expression for \( A \) that makes the equation \( A = 5 - \frac{11}{3} \) true, we first calculate \( 5 - \frac{11}{3} \).

First, convert 5 into a fraction with a denominator of 3: \[ 5 = \frac{15}{3} \]

Now replace 5 in the equation: \[ A = \frac{15}{3} - \frac{11}{3} \]

Now we can combine the fractions: \[ A = \frac{15 - 11}{3} = \frac{4}{3} \]

Now we check which of the given responses can be simplified or calculated to equal \( \frac{4}{3} \).

  1. \( A = 1 \frac{2}{3} + \frac{1}{3} \):
    Convert \( 1 \frac{2}{3} \) to an improper fraction:
    \( 1 \frac{2}{3} = \frac{5}{3} \)
    Adding:
    \[ \frac{5}{3} + \frac{1}{3} = \frac{6}{3} = 2 \quad \text{(not equal to } \frac{4}{3}\text{)} \]

  2. \( A = -\frac{2}{3} - \frac{1}{3} \):
    Adding:
    \[ -\frac{2}{3} - \frac{1}{3} = -\frac{3}{3} = -1 \quad \text{(not equal to } \frac{4}{3}\text{)} \]

  3. \( A = -\frac{1}{2} + \frac{1}{3} \):
    Convert \( -\frac{1}{2} \) to have a common denominator of 6:
    \[ -\frac{1}{2} = -\frac{3}{6}, \quad \frac{1}{3} = \frac{2}{6} \] Adding:
    \[ -\frac{3}{6} + \frac{2}{6} = -\frac{1}{6} \quad \text{(not equal to } \frac{4}{3}\text{)} \]

  4. \( A = \frac{15}{3} + \frac{1}{3} \):
    Adding:
    \[ \frac{15}{3} + \frac{1}{3} = \frac{16}{3} \quad \text{(not equal to } \frac{4}{3}\text{)} \]

  5. \( A = \frac{2}{3} - \frac{1}{3} \):
    Subtracting:
    \[ \frac{2}{3} - \frac{1}{3} = \frac{1}{3} \quad \text{(not equal to } \frac{4}{3}\text{)} \]

None of the given options equal \( \frac{4}{3} \). Since we've not successfully matched an expression, I will confirm the calculations are done correctly:

From \( A = 5 - \frac{11}{3} \), we calculated: \[ A = \frac{15}{3} - \frac{11}{3} = \frac{4}{3} \]

Among the options listed, it appears none of them yields \( \frac{4}{3} \). Please double-check the question or options for possible errors or omissions.