 # [F/OS] Decimal To Fraction Calculator! 🧮

Introduction

A simple extension that converts a decimal number to a fraction.

Version: 2

Blocks

DecimalToFraction Converts a decimal to a fraction.

Returns: text

Parameters: number = number (double), separator = text

GetDenominator Returns the denominator of the fraction from the decimal.

Parameters: number = double

GetNumerator Returns the numerator of the fraction from the decimal.

Parameters: number = double

Can this be done with built-in blocks?

Yes and no. As @ABG and I found out in this post, it really depends on what decimal you are converting. For some reason, AI2 floats decimals that are smaller than 0.00001. Hence, I recommend you to use this extension - you don't know what the user inputs.

TXT: Decimal2Fraction.txt (2.8 KB)

AIX: com.gordonlu.decimal2fraction.aix (6.4 KB)

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Kindly PM me if you have any questions! Also, if you like my extension, please like it! It takes some effort for me to make it...

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If you have any features that you want to add and you know the code, PM me.

11 Likes

Simple, novel, effective 1 Like

nice extension!

1 Like

Trouble logging in the extensions IDE the source code will be posted ASAP.

its ok no problem @Gordon_Lu

take your time to upload 1 Like

This extension is now Open Source. Free to modify. Thank you!

``````package com.gordonlu.decimal2fraction;

import android.app.Activity;
import android.content.Context;
import java.util.*;

@DesignerComponent(
version = 1,
description = "Converts a decimal into a fraction.",
category = ComponentCategory.EXTENSION,
nonVisible = true,

@SimpleObject(external = true)
//Libraries
@UsesLibraries(libraries = "")
//Permissions
@UsesPermissions(permissionNames = "")

public class Decimal2Fraction extends AndroidNonvisibleComponent {

//Activity and Context
private Context context;
private Activity activity;

public Decimal2Fraction(ComponentContainer container){
super(container.\$form());
this.activity = container.\$context();
this.context = container.\$context();
}

@SimpleFunction(description = "Turns a decimal into a fraction.")
public static String DecimalToFraction(double number, String separator) {
double intVal = Math.floor(number);
double fVal = number - intVal;
final long pVal = 1000000000;
long gcdVal = gcd(Math.round(fVal * pVal), pVal);

long num = Math.round(fVal * pVal) / gcdVal;
long deno = pVal / gcdVal;
return ((long)(intVal * deno) +
num + separator + deno);
}
@SimpleFunction(description = "Gets the numerator from the decimal.")
public static long GetNumerator(double number) {
double intVal = Math.floor(number);
double fVal = number - intVal;
final long pVal = 1000000000;
long gcdVal = gcd(Math.round(fVal * pVal), pVal);

long num = Math.round(fVal * pVal) / gcdVal;
long deno = pVal / gcdVal;
return ((long)(intVal * deno) +
num);
}
@SimpleFunction(description = "Gets the denominator from the decimal.")
public static long GetDenominator(double number) {
double intVal = Math.floor(number);
double fVal = number - intVal;
final long pVal = 1000000000;
long gcdVal = gcd(Math.round(fVal * pVal), pVal);

long num = Math.round(fVal * pVal) / gcdVal;
long deno = pVal / gcdVal;
return ((long)deno);
}
private static long gcd(long a, long b)
{
if (a == 0)
return b;
else if (b == 0)
return a;
if (a < b)
return gcd(a, b % a);
else
return gcd(b, a % b);
}
}
``````
2 Likes