Formula:
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Dividing a fraction by a whole number is a mathematical operation that simplifies to multiplying the denominator of the fraction by the whole number. This operation is commonly used in various mathematical and real-world applications.
The calculator uses the formula:
Where:
Explanation: Dividing a fraction by a whole number is equivalent to multiplying the denominator by that whole number while keeping the numerator the same.
Details: This operation is useful in scaling recipes, dividing resources proportionally, and solving various mathematical problems involving fractions and ratios.
Tips: Enter the numerator (a), denominator (b), and whole number (c). All values must be valid numbers (denominator and whole number cannot be zero).
Q1: Why does dividing a fraction by a whole number work this way?
A: Mathematically, dividing by a whole number is the same as multiplying by its reciprocal (1/c), which leads to multiplying the denominator by c.
Q2: What if the whole number is zero?
A: Division by zero is undefined, so the calculator requires a non-zero whole number.
Q3: Can this be applied to mixed numbers?
A: Yes, but mixed numbers should first be converted to improper fractions before applying this rule.
Q4: How is this different from dividing a whole number by a fraction?
A: Dividing a whole number by a fraction (c ÷ (a/b)) is equivalent to multiplying the whole number by the reciprocal of the fraction (c × b/a).
Q5: Can this formula be extended to dividing two fractions?
A: Yes, dividing two fractions (a/b) ÷ (c/d) is equivalent to multiplying by the reciprocal: (a/b) × (d/c) = (a×d)/(b×c).