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วิธีการคำนวณ Fraction to Decimal

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Converting a fraction to a decimal means performing the division indicated by the fraction bar. Some fractions produce terminating decimals (1/4 = 0.25); others produce repeating decimals (1/3 = 0.333...). A fraction terminates only if the denominator's only prime factors are 2 and/or 5.

สูตร

If it terminates: result is exact (1/8 = 0.125)
If
0 — 0

คำแนะนำทีละขั้นตอน

  1. 1Divide numerator by denominator
  2. 2If it terminates: result is exact (1/8 = 0.125)
  3. 3If it repeats: use bar notation (1/3 = 0.3̄)
  4. 4To check if it terminates: simplify, factor denominator, must only contain 2s and 5s

ตัวอย่างที่มีคำตอบ

อินพุต
3/8
ผลลัพธ์
0.375 (terminates)
3 ÷ 8 = 0.375 exactly (denominator = 2³)
อินพุต
1/6
ผลลัพธ์
0.1666... = 0.16̄ (repeats)
Denominator 6 = 2×3, has factor 3 → repeats
อินพุต
5/4
ผลลัพธ์
1.25
Improper fraction → decimal > 1

คำถามที่พบบ่อย

What is Fraction To Decimal?

Converting a fraction to a decimal means performing the division indicated by the fraction bar. Some fractions produce terminating decimals (1/4 = 0

How accurate is the Fraction To Decimal calculator?

The calculator uses the standard published formula for fraction to decimal. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Fraction To Decimal calculator use?

This calculator works with inches. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Fraction To Decimal calculator use?

The core formula is: If it terminates: result is exact (1/8 = 0.125). Each step in the calculation is shown so you can verify the result manually.

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