form 1 topics added

components/explorers/conversion-explorer.tsx

@@ -4,7 +4,7 @@ import { useState, useCallback } from "react";
 import { Card } from "@/components/ui/card";
 import { StepControls } from "./step-controls";
 import { MathDisplay } from "@/components/math/math-display";
-import { simplify, toKatex, gcd } from "@/lib/math/fractions";
+import { toKatex, gcd, Fraction } from "@/lib/math/fractions";
 import { parseStrictDecimal, parseStrictInt } from "@/lib/math/validation";
 
 type ConvertMode = "decToFrac" | "fracToDec";
@@ -42,7 +42,7 @@ function buildDecToFracSteps(decimal: string): Step[] {
   });
 
   // Simplify
-  const [sn, sd] = simplify(numerator, denominator);
+  const { n: sn, d: sd } = new Fraction(numerator, denominator).simplified();
   if (sn !== numerator || sd !== denominator) {
     const g = gcd(numerator, denominator);
     steps.push({
@@ -89,7 +89,7 @@ function buildFracToDecSteps(num: number, den: number): Step[] {
 
   // Check for terminating vs repeating
   let tempDen = den;
-  const [, simpDen] = simplify(num, den);
+  const { d: simpDen } = new Fraction(num, den).simplified();
   tempDen = simpDen;
   // Remove factors of 2 and 5
   while (tempDen % 2 === 0) tempDen /= 2;