Find the LCM of each group of numbers or expressions.?
437783
1) 1, 2, 3 and 6\n2) 1, 2, 2m\n3) 1\n4) 1, 3\n\n5) 5/9 (55/99) > (45/99) 5/11\n6) 2/3 (8/12) < (9/12) 3/4\n7) 4/5 (32/40) < (35/40) 7/8\n8) 1/3 (4/12) = (4/12) 4/12
812066
Find the lowest common denominator (LCD).\n\ni.e.  1/2 + 1/3\n\nLCD = 2*3 = 6\n\n(1*3)/(2*3) + (1*2)/(3*2) =\n\n3/6 + 2/6\n\n5/6
1140302
Here is an interactive page that discusses one way to do it:\n\nhttp://dilc.upd.edu.ph/loDeploy/math/math10a.html\n\nFor large numbers, bequalmings technique using logs is an easier way to go.
210100
Factor them out. \n2 = 2\n3 = 3\n4 = 2*2\n5 = 5\n6 = 3*2\nLowest common multiple = 2*2*3*5 = 60\nYou have 1 left over, so 60+1\n61.\n(2*30)+1, (3*20)+1, (4*15)+1, (5*12)+1, (6*10)+1
517819
start pulling out common factors\n\n2 (x^3 + 27)\n\n2(x^3 + 3^3)
841724
Look at the prime factors of each number, first of all.\n\nThen take enough prime factors from each to get your LCM, like this:\n\nFind the LCM of 6, 18 and 30.\n\nSTEP 1:  Determine the prime factors of each:\n6 = 2*3\n18 = 2*3*3\n30 = 2*3*5\n\nSTEP 2:  Gather enough prime factors so that you have enough prime factors to generate each of your original numbers:\n\nFrom 6, take 2*3\nFrom 18, take another 3 (since you already have the 2*3 from 6)\nFrom 30, take 5 (since you already have 2*3)\n\nSTEP 3:  Put them all together:\nFrom step 2, we have 2*3*3*5 = 90\nTherefore, 90 is the LCM of 6, 18, and 30\n\nDid this example help?
321475
*(2x/(x^2-4)) + (5/2-x) - (1/2+x)\n*(2x/(x^2-4)) + (5/2-x)((2+x)/(2+x)) - (1/2+x)((2-x)/(2-x))\n*(2x/(x^2-4)) + (10+5x)/(4-x^2) - (2-x)/(4-x^2)\n*(2x/(x^2-4)) + (8+6x)/(4-x^2)\n\nyou should be able to get it from there
30019
28 - 7*2*2\n\n155 - 5*31
96233
+5,+12, -5, -12, +3.3
1155862
to many to post.....they are all on this site \n\nhttp://www.geom.uiuc.edu/docs/reference/CRC-formulas/
1154468
make a common denominator\n\na/b - c/d = a*d/b*d - c*b/d*b = (a*d-c*b)/b*d
455504
I will explain a method that is the most easy on this planet, and a unique one.\n\nI will illustrate with the help of a simple example.\n\nEg. 4-2.\n\nDraw no. line as follows:\n\n<-6--5--4--3--2--1--0--1--2--3--4--5--6--7-->\n\nNumbers left to zero are negative integers\nand to the right are the positive ones.\n\nLocate 4 on this line. Now move 2 steps behind 4 as the operation to be carried out is subtraction.\n\nThis will give answer as 2. \n\nSimilarly for addition move the steps ahead.
777051
6=3*2\n7=7*1\n12=2*2*3\nso the LCM=2*3*7*2=84
824298
The LCM is the lowest (or least) number which contains all of the prime factors contained in each of the given numbers, so you need to factor each number out:\n12 = 2 X 2 X 3\n20 = 2 X 2 X 5\n35 = 5 X 7\n\nSo you need 2, 2, 3, 5, and 7\n2 X 2 X 3 X 5 X 7 = 420\n\nIt's 420.  Smoke 'em if you got 'em!
1101363
(1/8)x + 3/4 = 5/2\nThe LCM of the denominators (8,4 and 2) is 8\nMultiply everything by 8.\n8(1/8)x + 8(3/4) = 8(5/2)\nx + 6 = 20\nSubtract 6 from each side\nx = 14\nCheck:\n14(1/8) + 3/4 = 5/2\n14/8 + 3/4 = 5/2\n7/4 + 3/4 = 5/2\n10/4 = 5/2\n5/2 = 5/2
866874
2520,\nwhich is the least common multiple of 2,3,4...,10\n2^3 * 3^2 * 5 * 7
842276
1,2,3,4,6,8,12,16,24,48 \n\nlolz hope this helps :)