first multiply the top and bottom by the square root of 12. square root of 12 multiplied by square root of 3 equals the square root of 36. the square root of 36 is 6 so that’s the numerator. when you multiply the denominator by the square root of 12 it cancels out the square root and leaves 5x12. that leaves the denominator to be 60. since the numerator it 6 and the denominator is 60 you can simplify it by dividing both by 6. this leaves you with 1/10
