Equivalent Fractions Calculator

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Equivalent Fractions Calculator

First 10 Equivalent Fractions:

What are Equivalent Fractions?

Equivalent fractions are different fractions that name the same amount or distance on a number line. Even though they have different numerators and denominators, their value remains exactly the same. For example, 1/2 is the same as 2/4, 3/6, and 50/100.

How to Find Equivalent Fractions

To find an equivalent fraction, you must multiply or divide both the numerator (top number) and the denominator (bottom number) by the same non-zero whole number. This rule ensures that the ratio stays the same.

Example: Finding equivalents for 3/4

  • Multiply by 2: (3 × 2) / (4 × 2) = 6/8
  • Multiply by 3: (3 × 3) / (4 × 3) = 9/12
  • Multiply by 10: (3 × 10) / (4 × 10) = 30/40

Simplifying Fractions

A fraction is in its simplest form (or lowest terms) when the numerator and denominator have no common factors other than 1. Our calculator automatically finds the simplest form of your input using the Greatest Common Divisor (GCD) method.

Why use this tool?

This tool is essential for students, teachers, and professionals who need to quickly verify math homework, scale recipes, or perform engineering calculations. Whether you are adding fractions with different denominators or reducing a complex ratio, understanding equivalents is the first step.

function getGCD(a, b) { a = Math.abs(a); b = Math.abs(b); while (b) { var t = b; b = a % b; a = t; } return a; } function calculateEquivalents() { var num = parseInt(document.getElementById("numerator").value); var den = parseInt(document.getElementById("denominator").value); var resultArea = document.getElementById("resultArea"); var simplifiedDisplay = document.getElementById("simplifiedResult"); var listDisplay = document.getElementById("equivalentsList"); if (isNaN(num) || isNaN(den)) { alert("Please enter valid numbers for both fields."); return; } if (den === 0) { alert("The denominator cannot be zero."); return; } // Calculate simplified version var commonDivisor = getGCD(num, den); var simpleNum = num / commonDivisor; var simpleDen = den / commonDivisor; simplifiedDisplay.innerHTML = "Simplest Form: " + simpleNum + " / " + simpleDen; // Generate equivalents var listHtml = ""; var count = 0; var multiplier = 2; while (count < 10) { // Avoid repeating the original fraction if possible var nextNum = simpleNum * multiplier; var nextDen = simpleDen * multiplier; listHtml += '
' + nextNum + '—' + nextDen + '
'; multiplier++; count++; } listDisplay.innerHTML = listHtml; resultArea.style.display = "block"; }

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