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To solve this problem, we'll follow these steps:
Now, let's work through each step:
Step 1: The denominators are 7 and 8. Their product is . So, the common denominator is 56.
Step 2: Convert  to have a denominator of 56 by multiplying numerator and denominator by 8: .
Convert  to have a denominator of 56 by multiplying numerator and denominator by 7: .
Step 3: Add these equivalent fractions: .
Step 4: The fraction  is already in its simplest form.
Therefore, the solution to the problem is .
Complete the following exercise:
\( \frac{3}{4}:\frac{5}{6}=\text{?} \)
Because fractions represent parts of a whole, and you can only add parts that are the same size! Adding is like adding 1 slice of a 7-piece pizza to 1 slice of an 8-piece pizza - they're different sizes!
Yes! Since 7 and 8 share no common factors (they're relatively prime), their Least Common Multiple is always .
Check if 15 and 56 have common factors! Since 15 = 3 × 5 and 56 = 8 × 7, they share no common factors, so is already simplified.
The process stays the same! Find the LCM of the denominators, convert each fraction, then add. You might want to use prime factorization for larger numbers to find the LCM more easily.
No, cross-multiplication only works for equations with one fraction on each side. For adding fractions, you must use the common denominator method.
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