Math Problem Statement
Question content area top
Part 1
Perform the indicated operation. Write the sum as a fraction, whole number, or mixed number in lowest terms.
five sixths56plus+nine fourteenths
Solution
To solve this, we need to add the two fractions: .
Step 1: Find the Least Common Denominator (LCD)
The denominators are 6 and 14. The least common denominator is the least common multiple (LCM) of these two numbers.
- The prime factorization of 6 is .
- The prime factorization of 14 is .
The LCM is .
Step 2: Convert the fractions to have the LCD
Now, we convert both fractions to have the denominator 42.
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For , multiply both the numerator and denominator by 7 to get:
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For , multiply both the numerator and denominator by 3 to get:
Step 3: Add the fractions
Now, add the fractions:
Step 4: Simplify the fraction
Simplify by dividing both the numerator and denominator by their greatest common divisor (GCD), which is 2:
Step 5: Write as a mixed number
Since remainder 10, we can write it as a mixed number:
So, .
Let me know if you would like further details or clarifications.
Related Questions:
- How do you find the least common denominator of two fractions?
- What are the steps to convert an improper fraction to a mixed number?
- Can you explain how to simplify a fraction?
- What is the prime factorization method used to find the LCM?
- How do you convert a mixed number back to an improper fraction?
Tip:
When adding fractions, always check if you can simplify the final answer by dividing the numerator and denominator by their greatest common divisor (GCD).
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Math Problem Analysis
Mathematical Concepts
Fractions
Least Common Denominator
Simplifying Fractions
Mixed Numbers
Formulas
Least Common Denominator (LCD): LCM of denominators
Simplifying Fractions: Divide both numerator and denominator by their greatest common divisor (GCD)
Theorems
Least Common Denominator Theorem: To add or subtract fractions, they must have a common denominator.
Suitable Grade Level
Grades 6-8