Question

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

Answer 1

Step-by-step explanation:

let 27=a, and 90=b,

to prove,

HCF(a,b)×LCM(a,b) =a×b

L.H.S

=HCF(27,90)×LCM(27,90)

= 9 × 270

= 2430

R.H.S

=27×90

=2430

L.H.S=R.H.S

Hence,proved

hope it helps

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Answer 2

Step-by-step explanation:

Hcf Of 27 And 90 -

90= 3*3*2*5

27= 3*3*3

Hcf = 3*3=9

Lcm Of 27 And 90- 270

Product Of Hcf And Lcm = 270*9=2430

Product of two no=27*90=2430