the lcd is the least common denominator but the LCM is the least common multiple.
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LCD is where you find the LCM of the denominator of a fraction..Least Common Multiple(LCM) works this way:the LCM of 3, 6, 9 is:3=3, 6, 9, 12, 15, 18, 21, 24, 27, 30;6=12, 18, 24, 30, 36, 42, 48, 54, 60;9=9, 18, 27, 36, 45, 54, 63, 72, 81, 90;18 is the LCM since 18 is the smallest multiple of the three numbersso that's it.. LCD works this way:it is used in fractions.. example:the LCD of:1/32/61453/9is:the LCM of the denominator of the three numbers is 18.(18/9) x 1453 = n.(18/6) x 2 = o.(18/3) x 1 = p.n + o + p = LCD/18..
GCD and GCF are the same thing. Factors and divisors are interchangeable. The LCD and the LCM are the same process with different results. The LCD produces a denominator, the LCM produces a whole number.
The GCF is 5. The LCM is 70. The difference is 65.
The LCD for fractions is the LCM (least common multiple) of all of the denominators.
The same process is used to find both. When it's a whole number, we call it the LCM. When the whole number is a denominator, we cal it the LCD.