The common denominator of any two or more whole numbers, such as 10 and 15, will always be one (1) because 'common denominator' refers to the denominators of two or more fractions or mixed numbers, not whole numbers. So, a set of whole numbers (x,x) would have to be converted to their fraction equivalents, i.e., x/1, which will always yield a denominator of 1.
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60 is the least common denominator of 3 4 5 6 10 and 15.
im pretty sure the denominator is the bottom number so the common one would be 3 seeing as how it goes into both numbers. common means a number they share so 3x2=6 3x5=15 3 being the common denominator===========================================That was certainly a delightful bit of reading entertainment.Use a common denominator of 30 .
LCD(5, 15) = 15
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.
this is how you do it: 1 3/5 = 8/5 2/3 = 2/3 so then you find a lowest common denominator (LCD) which in this case is 15 and you put each fraction with the denominator as 15 and multiply the numerator by the same thing you multiplyed the denominator by so 8/5 = 24/15 2/3 = 10/15 then you subtract 24/15-10/15 = 14/15 which is your answer!!!