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To solve this problem, we'll follow these steps:
Step 1: Convert the mixed number to an improper fraction.
Step 2: Replace the division with multiplication by the reciprocal of the improper fraction.
Step 3: Perform the multiplication and simplify if necessary.
Now, let's work through each step:
Step 1: Convert to an improper fraction.
A mixed number is converted to an improper fraction .
So, .
Step 2: Replace the division with multiplication by the reciprocal of .
The reciprocal of is , so the expression becomes: .
Step 3: Perform the multiplication:
Multiply the numerators: .
Multiply the denominators: .
Thus, the product is .
No further simplification is needed as 8 and 21 have no common factors.
Therefore, the solution to the problem is .
\( \frac{1}{2}:3= \)\( \)\( \)\( \)
You can't divide by a mixed number directly! Converting to gives you a proper fraction that you can flip to find the reciprocal.
Use the formula: . For : multiply 1 × 4 = 4, add 3 = 7, keep denominator 4, so .
The reciprocal flips a fraction: becomes . Division by a fraction equals multiplication by its reciprocal - this is the key rule for fraction division!
Yes! Always check if your numerator and denominator share common factors. Since 8 and 21 share no common factors, is already in simplest form.
You could convert to decimals, but fractions give you the exact answer. is more precise than the decimal approximation 0.381...
Always flip the second fraction (the one you're dividing by). In , flip to get , then multiply.
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