EXAMPLE: 1 1/3 + 2 1/6 For this example you would add the 2 whole number together (1 and 2) So know all you have left to do is 1/3 + 1/6 The common denominator of 3 and 6 is 6 so you would multiply 3x2 because that's how many times 3 goes into 6 and 6x1 because that's how many times it goes into 6 Now we would also multiply the top numbers by the same amount we multiplied the bottom numbers by So 1x2 and 1x1 So now we have the answer of 3 3/6 but we now have to reduce 3/6 can be reduced to 1/2 because 3 goes into 6 2 times and 6 goes into 6 1 time Therefore are final sum is 3 1/2