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

00:07 Let's solve this problem together!
00:10 We need to find the least common denominator to begin.
00:14 To do this, Multiply both numbers by 3 and 2. This gives us a common denominator.
00:20 Remember, multiply the top number and the bottom number, the numerator and denominator, by the same values.
00:28 Now, it's time to do the calculations.
00:34 Once that's done, subtract using the common denominator you found.
00:41 Let's focus on finding the new numerator.
00:46 Great work! Now reduce the fraction as much as you can.
00:51 Be sure to divide both the top and bottom by the same number.
00:56 And there you have it, the solution to our 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}