Solve Fraction Subtraction: 2/4 - 1/6 Step-by-Step

Question

Solve the following exercise:

2416=? \frac{2}{4}-\frac{1}{6}=\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
00:21 Calculate the multiplications
00:27 Subtract with the common denominator
00:34 Calculate the numerator
00:39 Reduce the fraction as much as possible
00:43 Make sure to divide both numerator and denominator
00:48 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we will follow these steps:

  • Step 1: Simplify the initial fraction 24\frac{2}{4}.
  • Step 2: Find a common denominator for 12\frac{1}{2} and 16\frac{1}{6}.
  • Step 3: Convert the fractions to have the common denominator.
  • Step 4: Subtract the fractions.
  • Step 5: Simplify the resulting fraction.

Let's work through these steps:

Step 1: Simplify 24=12\frac{2}{4} = \frac{1}{2}.

Step 2: Identify the least common denominator (LCD) for 12\frac{1}{2} and 16\frac{1}{6}. The denominators are 2 and 6, and the LCM of 2 and 6 is 6.

Step 3: Convert both fractions to have this common denominator.
12=1×32×3=36\frac{1}{2} = \frac{1 \times 3}{2 \times 3} = \frac{3}{6}
16=16\frac{1}{6} = \frac{1}{6} (already with the correct denominator).

Step 4: Subtract the fractions:
3616=316=26\frac{3}{6} - \frac{1}{6} = \frac{3 - 1}{6} = \frac{2}{6}.

Step 5: Simplify the resulting fraction 26\frac{2}{6}. Find the greatest common divisor (GCD) of 2 and 6, which is 2, and divide both numerator and denominator by 2:
26=2÷26÷2=13\frac{2}{6} = \frac{2 \div 2}{6 \div 2} = \frac{1}{3}.

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

Answer

13 \frac{1}{3}