170
68/102 = 34/51
LCM(68, 102) = 204 HCF(68, 102) = 34
-68
102
34
34, 68, 102, 136, 170, 204, 238, 272, 306, 340, . . .
1,2,17,34
1, 2, 4, 17, 34, 68 1, 2, 3, 6, 17, 34, 51, 102
The Arithmetic mean of 34 and 102 is 68.To find the Arithmetic mean (average) of any amount of numbers, add all the numbers together, then divide by the number of numbers.So:(34+102)/2=68
34 + 4x=102 4x=68 x=17
2, remainder 68
LCM of 102 and 68 is 204. Write the numbers in prime factorisation in power form; for the LCM multiply together the highest power of each prime across the numbers: 102 = 2 x 3 x 17 68 = 22 x 17 LCM = 22 x 3 x 17 = 204