diff --git a/Maths/test/FareyApproximation.test.js b/Maths/test/FareyApproximation.test.js
new file mode 100644
index 000000000..bdd07eb64
--- /dev/null
+++ b/Maths/test/FareyApproximation.test.js
@@ -0,0 +1,13 @@
+import { fareyApproximation } from "../FareyApproximation"
+
+describe('fareyApproximation', () => {
+  it('Return Farey Approximation of 0.7538385', () => {
+    const approx = fareyApproximation(0.7538385)
+    expect(approx).toBe({ numerator: 22, denominator: 29 })
+  })
+  
+  it('Return Farey Approximation of 0.23584936', () => {
+    const approx = fareyApproximation(0.23584936)
+    expet(approx).toBe({ numerator: 13, denominator: 55 })
+  })
+})