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To solve this problem, we'll proceed with the following steps:
Now, let's work through each step:
Step 1: Simplify to since both 2 and 8 share a common factor of 2.
Step 2: Calculate the least common denominator (LCD) for and .
The LCD of 4 and 5 is 20.
Rewrite as and as .
Step 3: Subtract the fractions: .
Therefore, the missing fraction needed to satisfy the original equation is .
Thus, the solution to the problem is .
Solve the following exercise:
\( \frac{3}{9}+\frac{1}{9}=\text{?} \)
Simplifying makes the problem much easier! Working with instead of gives you a smaller LCD (20 instead of 40) and simpler arithmetic.
Since 4 and 5 share no common factors (they're relatively prime), multiply them together: 4 × 5 = 20. This is your LCD!
The ? represents the missing addend - the fraction you need to add to to get . Think of it like: ? =
You could, but it's not recommended here! and , but is harder to recognize. Stick with fractions for exact answers.
Find the GCD of 7 and 20. Since 7 is prime and doesn't divide 20, the GCD is 1. This means is already in simplest form!
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