common Denominators in an array js
function convertFrac(lst){
let numerator = [];
let denominator = [];
let allDen;
let str = '';
lst.forEach((e,i,arr)=>{
numerator.push(arr[i][0]);
denominator.push(arr[i][1])
})
for (let i = 1; i < 1000000; i++) {
all = denominator.every(e => i % e == 0)
if (all) {
allDen = i;
break;
}
}
numerator.forEach((e,i)=>str +=`(${(allDen/denominator[i])},${allDen})`)
return str;
}