Solve the Fraction Addition: 1/2 + 1/4 Step-by-Step

Question

Solve the following exercise:

12+14=? \frac{1}{2}+\frac{1}{4}=\text{?}

Video Solution

Solution Steps

00:00 Solve
00:03 We want to find the least common denominator
00:06 So we'll multiply by 2 for the common denominator 4
00:09 Remember to multiply both numerator and denominator
00:16 Let's calculate the multiplications
00:25 Add under common denominator
00:29 Calculate the numerator
00:32 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we'll follow these detailed steps:

  • Step 1: Identify the least common denominator (LCD)

The denominators given are 2 and 4. The least common multiple of these numbers is 4. Thus, the least common denominator is 4.

  • Step 2: Convert each fraction to have the common denominator

We need to convert 12 \frac{1}{2} to a fraction with a denominator of 4. To do this, we multiply both the numerator and the denominator of 12 \frac{1}{2} by 2:

12=1×22×2=24 \frac{1}{2} = \frac{1 \times 2}{2 \times 2} = \frac{2}{4}

The fraction 14 \frac{1}{4} already has the denominator 4, so it remains unchanged.

  • Step 3: Add the converted fractions

Now add 24 \frac{2}{4} and 14 \frac{1}{4} :

24+14=2+14=34 \frac{2}{4} + \frac{1}{4} = \frac{2+1}{4} = \frac{3}{4}

Therefore, the sum of 12+14 \frac{1}{2} + \frac{1}{4} is 34 \frac{3}{4} .

Answer

34 \frac{3}{4}