Simplify a fraction to lowest terms, see it as a decimal and a percentage, and convert a decimal back into the nearest exact fraction (up to a denominator of 10,000) using continued fractions.
Simplifying works by dividing both numerator and denominator by their greatest common divisor (GCD). The decimal-to-fraction direction is exact for terminating decimals like 0.375 = 3/8, and gives the best rational approximation otherwise — 0.333… becomes 1/3.
Frequently asked questions
What is 18/24 in lowest terms?
3/4 — both parts divided by their GCD, 6.
How do I turn 0.125 into a fraction?
0.125 = 125/1000 = 1/8 exactly; the calculator does this reduction for you.
Why does 0.333… become 1/3?
The continued-fraction method finds 1/3 is the closest fraction with a small denominator to 0.333…
中文说明
把分数约分到最简形式，查看对应的小数与百分比；也可以把小数转回最接近的精确分数（分母上限 10000），采用连分数逼近算法。
约分的原理是分子分母同除以最大公约数（GCD）。小数转分数对有限小数是精确的（如 0.375 = 3/8）；对无限小数则给出最优有理逼近——0.333… 会得到 1/3。
常见问题
18/24 的最简形式是什么？
3/4——分子分母同除以最大公约数 6。
0.125 怎么化成分数？
0.125 = 125/1000 = 1/8（精确值），本计算器会自动完成约分。
为什么 0.333… 会得到 1/3？
连分数算法会找出分母较小时最接近 0.333… 的分数，正是 1/3。