Math Problem Statement

What is the value of the expression ? 1 2/3 / 2 4/5

Solution

To find the value of the expression 123245\frac{1 \frac{2}{3}}{2 \frac{4}{5}}, let’s follow these steps:

Step 1: Convert the Mixed Numbers to Improper Fractions

  1. Convert 1231 \frac{2}{3}: 123=3×1+23=531 \frac{2}{3} = \frac{3 \times 1 + 2}{3} = \frac{5}{3}

  2. Convert 2452 \frac{4}{5}: 245=5×2+45=1452 \frac{4}{5} = \frac{5 \times 2 + 4}{5} = \frac{14}{5}

Step 2: Divide the Fractions

To divide 53\frac{5}{3} by 145\frac{14}{5}, multiply 53\frac{5}{3} by the reciprocal of 145\frac{14}{5}, which is 514\frac{5}{14}.

53÷145=53×514=2542\frac{5}{3} \div \frac{14}{5} = \frac{5}{3} \times \frac{5}{14} = \frac{25}{42}

Final Answer

The value of the expression is: 2542\frac{25}{42}

Would you like further details on any step, or have any questions?


Here are 5 related questions to deepen understanding:

  1. What is the value of 314/1383 \frac{1}{4} / 1 \frac{3}{8}?
  2. How would you multiply 227×1592 \frac{2}{7} \times 1 \frac{5}{9}?
  3. What is the reciprocal of 4234 \frac{2}{3}?
  4. Can you simplify 53×75\frac{5}{3} \times \frac{7}{5}?
  5. How can you convert a fraction like 2542\frac{25}{42} to a decimal?

Tip: Always convert mixed numbers to improper fractions before performing operations like division or multiplication.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Fractions
Mixed Numbers
Division of Fractions

Formulas

Conversion of mixed numbers to improper fractions
Division of fractions by multiplying with the reciprocal

Theorems

-

Suitable Grade Level

Grades 5-7