Math Problem Statement

5 5/7 ÷ 1 3/5 · 4 2/3

Solution

The expression in the image is:

557÷1354235 \frac{5}{7} \div 1 \frac{3}{5} \cdot 4 \frac{2}{3}

To solve this, let's break it down into steps:

Step 1: Convert the Mixed Numbers to Improper Fractions

  1. 557=57+57=35+57=4075 \frac{5}{7} = \frac{5 \cdot 7 + 5}{7} = \frac{35 + 5}{7} = \frac{40}{7}
  2. 135=15+35=5+35=851 \frac{3}{5} = \frac{1 \cdot 5 + 3}{5} = \frac{5 + 3}{5} = \frac{8}{5}
  3. 423=43+23=12+23=1434 \frac{2}{3} = \frac{4 \cdot 3 + 2}{3} = \frac{12 + 2}{3} = \frac{14}{3}

Now the expression becomes:

407÷85143\frac{40}{7} \div \frac{8}{5} \cdot \frac{14}{3}

Step 2: Perform the Division

Dividing by a fraction is the same as multiplying by its reciprocal:

40758143\frac{40}{7} \cdot \frac{5}{8} \cdot \frac{14}{3}

Step 3: Simplify the Expression by Multiplying the Fractions

Multiply the numerators and denominators:

40514783\frac{40 \cdot 5 \cdot 14}{7 \cdot 8 \cdot 3}

Step 4: Simplify by Canceling Common Factors

  1. Simplify 408=5\frac{40}{8} = 5, so the expression becomes: 551473=251421\frac{5 \cdot 5 \cdot 14}{7 \cdot 3} = \frac{25 \cdot 14}{21}

  2. Simplify 147=2\frac{14}{7} = 2, so now we have: 2523=503\frac{25 \cdot 2}{3} = \frac{50}{3}

Final Answer

503or as a mixed number: 1623\frac{50}{3} \quad \text{or as a mixed number: } 16 \frac{2}{3}

Would you like a detailed breakdown of any part of the solution, or do you have any other questions?

Here are five related questions to extend this topic:

  1. How do you multiply and divide mixed numbers directly without converting to improper fractions?
  2. How do you simplify complex fractions in multi-step problems like this?
  3. What strategies help in reducing fractions early in multi-step calculations?
  4. How do you handle division and multiplication with negative fractions?
  5. How do you convert a result in improper fraction form to a decimal?

Tip: Always simplify fractions step-by-step to make large multiplications easier and avoid calculation errors.

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Math Problem Analysis

Mathematical Concepts

Fractions
Mixed Numbers
Multiplication and Division of Fractions
Improper Fractions
Simplification

Formulas

Mixed to Improper Fraction Conversion: a b/c = (a * c + b)/c
Division of Fractions: a/b ÷ c/d = a/b * d/c
Multiplication of Fractions: (a/b) * (c/d) = (a * c) / (b * d)

Theorems

Basic Properties of Fractions

Suitable Grade Level

Grades 6-8