What would be the ideal Common Denominator for 2 and 4?
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3 - 4-1/2 = 6/2 - 9/2 common denominator would be 2.
The LCD of 2/3, 5/6, and 3/4 is 24
I do it by finding a common denominator. For example, 2/3 - 1/5. The least common denominator is 15. 2/3 = 10/15, and 1/5 = 3/15, the difference of which is 7/15. Here is another example: 5/6 - 2/3. In this case, the least common denominator is 6. 2/3 = 4/6, and 5/6 - 4/6 = 1/6.
You can compare fractions that do not have the same numerator or denominator by finding the least common denominator. For example, compare 1/6 and 1/4. Step 1: Find multiples of the denominators, 6 and 4. Step 2: Find the LCM of 6 and 4. Look at the multiples of 6 and 4. 12 is the least number that is a common multiple of both 6 and 4. Step 3: Write equivalent fractions of 1 out of 6 and 1 out of 4 using 12 as the LCD. Step 4: Compare the 2 fractions.
1/4 and 1/6-------------------------12 looks good here.3*1/3*4 and 2*1/2*63/12 and 2/12===============Common denominator,= 12====