Solve Fraction Subtraction: 4/6 - 3/9 Step-by-Step

Question

Solve the following exercise:

4639=? \frac{4}{6}-\frac{3}{9}=\text{?}

Video Solution

Solution Steps

00:00 Solve
00:03 We want to find the least common denominator
00:06 Multiply by 3 and 2 respectively to find the common denominator
00:09 Make sure to multiply both numerator and denominator
00:19 Calculate the multiplications
00:27 Subtract with the common denominator
00:31 Calculate the numerator
00:38 Reduce the fraction as much as possible
00:42 Make sure to divide both numerator and denominator
00:45 And this is the solution to the question

Step-by-Step Solution

To solve this problem, let's go step by step:

  • Step 1: Identify the Least Common Denominator (LCD).
    • The denominators are 6 and 9.
    • The multiples of 6 are 6, 12, 18, 24, ...
    • The multiples of 9 are 9, 18, 27, 36, ...
    • The smallest common multiple is 18.
  • Step 2: Rewrite the fractions with the common denominator of 18.
    • 46 \frac{4}{6} can be converted by finding an equivalent fraction with a denominator of 18: 4×36×3=1218\frac{4 \times 3}{6 \times 3} = \frac{12}{18}.
    • 39 \frac{3}{9} can be converted similarly: 3×29×2=618\frac{3 \times 2}{9 \times 2} = \frac{6}{18}.
  • Step 3: Subtract the two fractions.
    • Subtract the numerators: 126=612 - 6 = 6.
    • The result is 618\frac{6}{18}.
  • Step 4: Simplify the resulting fraction.
    • 618\frac{6}{18} simplifies to 13\frac{1}{3} by dividing both the numerator and the denominator by 6.

Therefore, the solution to the problem is 13 \frac{1}{3} .

Answer

13 \frac{1}{3}