小数转成分数

最近在写一个项目,后台返回的是两位小数,让转成分数,网上找了下资料,直接上代码记录下:

const decimalsToFractional = (decimals) => {
    const formatDecimals = decimals;
    let denominator = 100; //初始化分母
    let numerator  = formatDecimals * 100; //初始化分子
    let bigger = 0;
    function  recursion (){
        bigger = denominator > numerator ? denominator : numerator;
        for(let i = bigger; i > 1; i--){
            if( Number.isInteger(numerator/i) && Number.isInteger(denominator/i) ){
                numerator=numerator/i;
                denominator=denominator/i;
                recursion();
            }
        }
    }
    recursion();
    return `${numerator}/${denominator}`
}