how to do L.C.M? Explain briefly.
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After you've calculated a least common multiple, always check to be sure your answer can be divided evenly by both numbers. Find the LCM of these sets of numbers. Multiply each factor the greatest number of times it occurs in any of the numbers. 9 has two 3s, and 21 has one 7, so we multiply 3 two times, and 7 once.
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Hey....to take LCM..
E.G.
LCM OF ...20 AND 50.
FIRST U R TO SAW THAT INWHICH TABLE THE NUMBERS COME.
IN THIS 20 AND 50 CAME IN THE TABLE OF 2.
SO DIVIDE 20 AND 50 BY 2.
AGAIN AND AGAIN U R TO SEE THE NUMBERS AND... IN WHATEVER THE TABLE THEY COME...DIVIDE THEM BY THAT DIGIT.
AT LAST 1 SHOULD COME.
E.G.
LCM OF ...20 AND 50.
FIRST U R TO SAW THAT INWHICH TABLE THE NUMBERS COME.
IN THIS 20 AND 50 CAME IN THE TABLE OF 2.
SO DIVIDE 20 AND 50 BY 2.
AGAIN AND AGAIN U R TO SEE THE NUMBERS AND... IN WHATEVER THE TABLE THEY COME...DIVIDE THEM BY THAT DIGIT.
AT LAST 1 SHOULD COME.
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