rational.js vs fraction.js vs ratio.js  subtract, multiply, add, divide
JavaScript performance comparison
Preparation code
<script src="http://acerix.github.com/rational.js/releases/rationaljs.alpha.js">
</script>
<script src="https://raw.github.com/ekg/fraction.js/master/fraction.js"></script>
<script src="https://raw.github.com/LarryBattle/Ratio.js/master/lib/Ratio0.4.0.min.js"></script>
<script>
Benchmark.prototype.setup = function() {
var test_cases = [
[3466463461, 134534331],
[12312337, 334534535],
[3453453, 3653450],
[53453453411, 365340],
[123453453, 3653453450],
[173646341, 36345340],
[245345213, 2353523],
[212151121, 234234666],
[234235535, 234234666],
[656755537, 65676767]
];
var float_1 = 1 / 10;
var float_2 = 111 / 3;
var rat_1 = rat.fromValues(1, 10);
var rat_2 = rat.fromValues(111, 3);
var ratio_1 = Ratio(1, 10);
var ratio_2 = Ratio(111, 3);
var frac_1 = new Fraction(1, 10);
var frac_2 = new Fraction(111, 3);
};
</script>
Preparation code output
Test runner
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Java applet disabled.
Test  Ops/sec  

native float approximation 

pending… 
rational.js calculation 

pending… 
Ratio.js 

pending… 
fraction.js 

pending… 
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