The Least Common Multiple of 21, 63, 147: 441
LCD(49, 21) = 147
LCD(9, 21) = 63
There is none because the Least Common Denominator (or LCD) refers to the Least Common Multiple (LCM) of the denominators of two or more fractions or mixed numbers. Even if you converted your whole numbers (x) to their fraction equivalents (x/1), the LCD would always be 1.
21, 42, 63, 84, 105,126, 147, 168, 189, 210 :)
LCD(63, 7) = 63.
The LCM is 441.
The Least Common Multiple (LCM) for 147 63 is 441.
0.4286
63/147 = 3/7
The greatest common factor of 63, 147, and 1764 is 21.
The LCM is 3969.
63/147 = 3/7
The Least Common Multiple of 21, 63, 147: 441
63/147 63 3*21 3*3*7 147 49*3 7*7*3 63/147 3*3*7/7*7*3 3/7
147.
LCD(49, 21) = 147