Question

12. For each of the following pairs of numbers,
show that the product of their HCF and LCM
equals their product:
(i) 14, 21
(ii) 27,90​

Answer 1

Answer: It is proved below

Step-by-step explanation: (i) HCF of 14 and 21 is=7

                                                  LCM of 14 and 21 is 42

      Therefore     42 x7=294 which is also equal to 21 x 14= 294

Hence proved

                                                (ii) HCF of 27 and 90 is 9

                                                     LCM of 27 and 90 = 270

Therefore, 270 x 9=2430 which is also equal to 27 x 90= 2430

Hence, proved

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