Using this Activity, find the HCF (i) 90,15 (ii) 80,25 (iii) 40,16
Answers
Answered by
8
Step-by-step explanation:
Hcf of
i) 90 = 5 × 3 × 3 × 2
15 = 5 × 3
HCF = 5 × 3 = 15
ii) 80 = 5 ×2×2×2×2
25 = 5 × 5
HCF = 5
iii) 40 = 5 ×2×2
16 = 2×2×2×2
HCF = 2×2 = 4
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Answered by
7
Answer:
1) HCF of 90, 15 is 15
2)HCF of 80, 25 is 5
3)HCF of 40, 16 is 8
Step-by-step explanation:
HCF by Prime Factorisation
1) 90 = 2×3×3×5
15 = 3×5
HCF of 90 and 15 is 3×5= 15
2) 80 = 2×2×2×2×5
25 = 5×5
HCF of 80 and 25 is 5
3) 40 = 2×2×2×5
16 = 2×2×2×2
HCF of 40 and 16 is 2×2×2 = 8
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