Math Problem Statement

2 2/4 + 4 7/8 = ?

Solution

The expression in the image is:

224+4782 \frac{2}{4} + 4 \frac{7}{8}

Step 1: Convert the mixed numbers to improper fractions.

  • 224=2×4+24=8+24=1042 \frac{2}{4} = \frac{2 \times 4 + 2}{4} = \frac{8 + 2}{4} = \frac{10}{4}
  • 478=4×8+78=32+78=3984 \frac{7}{8} = \frac{4 \times 8 + 7}{8} = \frac{32 + 7}{8} = \frac{39}{8}

Step 2: Find the common denominator between 4 and 8.

The least common denominator (LCD) is 8.

  • Convert 104\frac{10}{4} to a fraction with denominator 8:
    104=10×24×2=208\frac{10}{4} = \frac{10 \times 2}{4 \times 2} = \frac{20}{8}

Step 3: Add the fractions.

Now add 208+398\frac{20}{8} + \frac{39}{8}: 208+398=20+398=598\frac{20}{8} + \frac{39}{8} = \frac{20 + 39}{8} = \frac{59}{8}

Step 4: Convert the result back to a mixed number.

598=738\frac{59}{8} = 7 \frac{3}{8}

So the final answer is:

7387 \frac{3}{8}

Would you like further clarification or more details?

Here are 5 related questions to practice:

  1. How do you convert any mixed number into an improper fraction?
  2. What is the method to find the least common denominator for adding fractions?
  3. Can you simplify 598\frac{59}{8} in a different way?
  4. How do you subtract mixed numbers?
  5. What is the difference between a proper fraction and an improper fraction?

Tip: When adding or subtracting mixed numbers, always convert them into improper fractions first to make calculations easier!

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Math Problem Analysis

Mathematical Concepts

Mixed Numbers
Improper Fractions
Fraction Addition
Common Denominator

Formulas

Mixed number to improper fraction conversion: a b/c = (a*c + b)/c
Fraction addition: a/b + c/d = (a*d + b*c)/(b*d)

Theorems

None specifically required, but the concept of common denominators in fractions applies.

Suitable Grade Level

Grades 5-7