Question

h.c.f and l.c.m of120,90​

Answer 1

Answer:

$20 = 2 \times 2 \times5 \\ 90 = 2 \times 3 \times 3 \times 5$

HCF = 2 × 5 = 10

LCM = 2 × 3 × 5 × 3 × 2 = 180

Answer 2

hey ❤

h.c.f and l.c.m of120,90

Solution :-

LCM:-

(1) 120= 2×2×2×3×5

(2) 90= 2×3×3×5

so LCM will be

= 2×3×5×3×2×2

= 8×9×5

= 360

HCF:-

(1) 120= 2×2×2×3×5

(1) 120= 2×2×2×3×5(2) 90= 2×3×3×5

take common factor

= 2×3×5

= 30

so,

30 is the HCF of 120, 90

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