Question

find the hcf of 42 and 70 using repeated subtraction​

Answer 1

Step-by-step explanation:

there are two methods first is tree method second is division algorithm method

sorry idk ur formula but HCF is 14 only

Answer 2

Answer:

HCF of 42 & 70 is 14

step by step explanation

• Let number be m & n
• m > n
• We do m – n & the result of subtraction becomes new ‘m’. if m becomes less than n, we do n – m and then assign the result as n. We should do this till m = n. When m = n then ‘m’ is the HCF.
• 42 and 70 now m = 70, n = 42
• 70 – 42 = 28, now m = 42, n = 28
• 42 – 28 = 14, now m = 28,
• n = 14 28 – 14= 14, now m = 14, n = 14
• We stop here as m = n ∴
• HCF of 42 & 70 is 14

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