Pierce Cross
12/17/2023 · Elementary School
v) \( \frac{8}{7}: \frac{1}{23}-\frac{14}{21}: 23 \)
UpStudy ThothAI Solution
Tutor-Verified Answer
Step-by-step Solution
To solve the expression \( \frac{8}{7}: \frac{1}{23}-\frac{14}{21}: 23 \), we will first interpret the colons (:) as division.
The expression can be rewritten as:
\[
\frac{8}{7} \div \frac{1}{23} - \frac{14}{21} \div 23
\]
Now, we will calculate each division separately.
1. **Calculating \( \frac{8}{7} \div \frac{1}{23} \)**:
Dividing by a fraction is the same as multiplying by its reciprocal:
\[
\frac{8}{7} \div \frac{1}{23} = \frac{8}{7} \times 23 = \frac{8 \times 23}{7} = \frac{184}{7}
\]
2. **Calculating \( \frac{14}{21} \div 23 \)**:
Again, we will multiply by the reciprocal:
\[
\frac{14}{21} \div 23 = \frac{14}{21} \times \frac{1}{23} = \frac{14}{21 \times 23} = \frac{14}{483}
\]
Now we can substitute these results back into the expression:
\[
\frac{184}{7} - \frac{14}{483}
\]
To perform this subtraction, we need a common denominator. The least common multiple of 7 and 483 can be calculated. Since \( 483 = 7 \times 69 \), the common denominator is \( 483 \).
Now we convert \( \frac{184}{7} \) to have a denominator of 483:
\[
\frac{184}{7} = \frac{184 \times 69}{7 \times 69} = \frac{12696}{483}
\]
Now we can perform the subtraction:
\[
\frac{12696}{483} - \frac{14}{483} = \frac{12696 - 14}{483} = \frac{12682}{483}
\]
Thus, the final result is:
\[
\frac{12682}{483}
\]
This fraction can be simplified if necessary, but it appears to be in its simplest form. Therefore, the final answer is:
\[
\frac{12682}{483}
\]
Quick Answer
The simplified expression is \( \frac{12682}{483} \).
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