JAVA题目~分数类FractionExp03-4-创新互联

import java.util.Objects;
import java.util.Scanner;

class Fraction
{
	private int nume ;
	private int deno;
	public Fraction(int nume,int deno)
	{
		super();
		this.nume=nume;
		this.deno=deno;
	}
	public Fraction()
	{
		this.nume=0;
		this.deno=1;
	}
	Fraction add(Fraction fo)
	{
		Fraction ret=new Fraction();
		ret.nume=this.nume*fo.deno+this.deno*fo.nume;
		ret.deno=this.deno*fo.deno;
		ret.reduce();
		return ret;
		
	}
	Fraction sub(Fraction fo) 
	{
		Fraction ret=new Fraction();
		ret.nume=this.nume*fo.deno-this.deno*fo.nume;
		ret.deno=this.deno*fo.deno;
		ret.reduce();
		return ret;
	}
	Fraction mul(Fraction fo) 
	{
		Fraction ret=new Fraction();
		ret.nume=this.nume*fo.nume;
		ret.deno=this.deno*fo.deno;
		ret.reduce();
		return ret;
	}
	Fraction div(Fraction fo) 
	{
		Fraction ret=new Fraction();
		ret.nume=this.nume*fo.deno; 
		ret.deno=this.deno*fo.nume;
		ret.reduce();
		return ret;
	}
	@Override
	public String toString() {
		if(nume==0)
			return ""+0;
		else if(deno==1)
			return nume+"";
		return nume + "/" +deno;
	}
	int getMaxComFactor(int m,int n)
	{
		if(m

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