Fraction Calculator API

POST https://api.findutils.com/api/tools/fraction-calculator/execute

Add, subtract, multiply or divide two fractions, or simplify one. Accepts whole numbers (3), simple fractions (3/4), mixed numbers (2 1/2) and decimals (0.75). Returns the reduced fraction, the mixed-number form, the decimal value, and the steps. Exact integer arithmetic — no floating-point drift.

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Request body

application/json

a

string required

First value: 3, 3/4, 2 1/2, or 0.75.
b

string optional

Second value, same formats. Omit it to simply reduce the first value.
operation

string optional

What to do with the two values. Ignored when b is omitted. One of add · subtract · multiply · divide. Default "add".

Example arguments

Verified

{
  "a": "1/3",
  "b": "1/6",
  "operation": "add"
}

curl -X POST https://api.findutils.com/api/tools/fraction-calculator/execute \
  -H "Content-Type: application/json" \
  -d '{
    "a": "1/3",
    "b": "1/6",
    "operation": "add"
  }'

const response = await fetch('https://api.findutils.com/api/tools/fraction-calculator/execute', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({"a":"1/3","b":"1/6","operation":"add"}),
});
const data = await response.json();

import requests

response = requests.post(
    "https://api.findutils.com/api/tools/fraction-calculator/execute",
    json={"a":"1/3","b":"1/6","operation":"add"},
)
data = response.json()

$ch = curl_init('https://api.findutils.com/api/tools/fraction-calculator/execute');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => ['Content-Type: application/json'],
    CURLOPT_POSTFIELDS => '{"a":"1/3","b":"1/6","operation":"add"}',
    CURLOPT_RETURNTRANSFER => true,
]);
$data = json_decode(curl_exec($ch), true);

Also an MCP tool

Call fraction_calculator from Claude, Cursor or any MCP client. Same arguments, same output.

https://mcp.findutils.com

MCP reference

Rate limit: 60 a minute, per IP
Auth: None
REST id: fraction-calculator
MCP name: fraction_calculator
Category: Calculators
Machine-readable: openapi.json · markdown.md

Request body

Example arguments

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