Find HCF and LCM of the following pairs

(I) 28 and 14
(II) 6 and 7
(III) 18 and 22
(IV) 10,18,24

Find HCF and LCM of the following pairs

(I) 28 and 14
(II) 6 and 7
(III) 18 and 22
(IV) 10,18,24
(V) 9,10,7
(VI) 10,20,60

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  1. Answer:

    (I) 28 and 14: HCF – 7; LCM – 28

    (II) 6 and 7: HCF – 1; LCM – 42

    (III) 18 and 22: HCF – 2; LCM – 198

    (IV) 10, 18 and 24: HCF – 2; LCM – 360

    (V) 9, 10 and 7: HCF – 1; LCM – 630

    (VI) 10, 20 and 60: HCF – 10; LCM – 60

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