What is 1/2 minus 2/4? (Answer: 0)

Exact Answer

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Problem: What is 1/2 minus 2/4?
Formula / Expression: 1/2 − 2/4
Final Answer: 0
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Step-by-Step Solution:

Step 1: Find the Least Common Denominator (LCD)
Notice that 4 is an exact multiple of 2 (2 × 2 = 4). The Least Common Denominator (LCD) is simply 4, meaning we only need to scale one fraction.
Working: LCD(2, 4) = 4

Step 2: Convert to Equivalent Fractions with Common Denominator 4
Multiply the numerator and denominator of 1/2 by 2, and multiply the numerator and denominator of 2/4 by 1 so both fractions share the common base 4.
Working: 1 × 2/2 × 2 = 2/4 and 2 × 1/4 × 1 = 2/4

Step 3: Subtract the Numerators
Now subtract the numerators (2 − 2 = 0) and keep the common denominator 4 unchanged.
Working: 2 − 2/4 = 0/4

Step 4: Check if the Fraction Can Be Simplified
The Greatest Common Divisor (GCD) of 0 and 4 is 1, confirming that 0/1 cannot be reduced further—it is already in its simplest irreducible form.

Step 5: Decimal & Percentage Representation
Dividing the numerator 0 by denominator 1 yields an exact terminating decimal of 0 (or 0%).
Working: 0 ÷ 1 = 0 (0%)

Key Values:
- Decimal Value: 0
- Percentage: 0%

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1/2 − 2/4 = 0

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Step-by-Step Solution: 1/2 − 2/4

Step 1

Find the Least Common Denominator (LCD)

Notice that 4 is an exact multiple of 2 (2 × 2 = 4). The Least Common Denominator (LCD) is simply 4, meaning we only need to scale one fraction.

LCD(2, 4) = 4

Step 2

Convert to Equivalent Fractions with Common Denominator 4

Multiply the numerator and denominator of 1/2 by 2, and multiply the numerator and denominator of 2/4 by 1 so both fractions share the common base 4.

1 × 2/2 × 2 = 2/4 and 2 × 1/4 × 1 = 2/4

Step 3

Subtract the Numerators

Now subtract the numerators (2 − 2 = 0) and keep the common denominator 4 unchanged.

2 − 2/4 = 0/4

Step 4

Check if the Fraction Can Be Simplified

The Greatest Common Divisor (GCD) of 0 and 4 is 1, confirming that 0/1 cannot be reduced further—it is already in its simplest irreducible form.

Step 5

Decimal & Percentage Representation

Dividing the numerator 0 by denominator 1 yields an exact terminating decimal of 0 (or 0%).

0 ÷ 1 = 0 (0%)

Visual Representation

The diagram below illustrates 1/2 minus 2/4 visually:

−

Summary & Alternative Representations

Property / Format	Value
Lowest Terms Fraction	`0`
Mixed Number Form	`0`
Decimal Form	`0`
Percentage	`0%`

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Frequently Asked Questions

What is 1/2 minus 2/4 as a fraction?

1/2 − 2/4 in simplest fraction form is 0.

What is 1/2 minus 2/4 as a decimal?

1/2 − 2/4 converted to a decimal is 0.

What is 1/2 minus 2/4 as a percentage?

1/2 − 2/4 expressed as a percentage is 0%.

Is the answer to 1/2 minus 2/4 a whole number?

Yes, 1/2 − 2/4 simplifies completely to the whole number 0 with no remaining fractional part.