2016年11月14日 · Method 2: Write down multiples of 9. Just 9. So you're pretty much picking the largest number out of 4, 9 and 3. 9, 18, 27, 36, 45, 54, 63, 72, 81, 90 Now pick a number out of 3 and 4. Then see if that number goes into any multiple. Tip: Start from the first multiple and move on. I picked 4. Does 4 go into 9? Nope. Does 4 go into 19? Nope. Does ...

You know that the LCM has to be some multiple of 12, so start considering the multiples of 12 one at a time. #12 xx 1# #larr# 12 doesn't work because 9 doesn't go into 12 evenly (even though 4 does.) #12 xx 2# #larr# 24 isn't it either because 9 doesn't go into 24 #12 xx 3# #larr# Here is the right answer. 4, 9, and 12 all go into 36 evenly

2016年6月28日 · 36 One way we can use is prime factorisation. We factorise 4, 6 and 9 4= 2^2 6=2*3 9=3^3 Once we have this we use the highest of each prime number. So in this case we have the 2^2 and 3^3 as our highest of those to primes. Next all we need to do is times those together 2^2= 4 3^3=9 4*9=36 36 is the LCM of 4, 6 and 9

2017年10月16日 · Then you find the first number which #4# and #7# have in common. #4# and #7# have #28# and #56# in common BUT the LCM would be #28# since that's the LEAST common, or the smallest number that they would have in common.

2016年4月15日 · LCM is 360. Prime factors of 5 are just 5, of 8 just 2xx2xx2 and of 9 just 3xx3. There is nothing common between them. Hence their LCM is 5xx8xx9=360

2016年11月30日 · LCM(10;4;18)= 180 Factorize the three numbers: 10 = 2*5 4=2^2 18=2*3^2 The least common multiple is the product of all prime factors present in at least one number, taken once with the highest exponent: LCM = 2^2*3^2*5 =4*9*5=180

2018年4月20日 · See a solution process below 9 + 3/4x = 7/8x - 10 Multiply through by their LCM 4 = 2 xx 2 8 = 2 xx 2 xx 2 ...

2017年1月8日 · LCM=20 multiples of 10:{10,color(red)(20),30,40,50,...} multiples 4:{4,8,12,16,color(red)(20),24,28,32,36,40,...} common multiples{20,40,....} The first shared value ...

2018年5月7日 · "LCM(2,3,18)=18" Prime factorization can also be used to determine the LCM. Prime factorize each number. 2: 2 3: 3 9: 3xx3 Multiply each factor the greatest number of times it occurs in each number. If the same factor occurs more than once in two or more numbers, multiply the factor the greatest number of times it occurs. 2: "one occurence" 3 ...

2016年4月3日 · 126 An alternative method to find the LCM is to find the GCF (greatest common factor) and divide the product of the numbers by it. To find the GCF of two numbers you can proceed as follows: Divide the larger number by the smaller to give a quotient and remainder. If the remainder is zero then the smaller number is the GCF. Otherwise, repeat with the smaller number and the remainder. In our ...