Most Likely.js

/*
Description:
Create a function mostLikely which compares two probabilities, returning true if the first one is most likely otherwise false.

For this exercise probability is expressed as two numbers separated by a colon e.g. a probability of 1 in 3 will be 1:3.

So:

mostLikely('1:3','1:2') will return false as 1 in 3 is less likely than 1 in 2.
*/
function mostLikely(prob1,prob2){
  let p1=prob1.split(':');
  let sum1=p1[0]/p1[1];
  let p2=prob2.split(':');
  let sum2=p2[0]/p2[1];
  return sum1>sum2;
}