Question

210 = -6ab hence ab =?​

Answer 1

>Answer<

Step 1 : 

Given integers are 210 and 55 such as 210>55 

By Euclid division lemma

210=55×3+45   

Step 2 : 

Since remainder 45=0. So for divisor 55 and remainder 45

By Euclid division lemma

55=45×1+10   

Remainder =0 

Step 3 :

  For division 45 and remainder 10 by Euclid division lemma 

45=10×4+5   

Remainder =0 

Step 4 : 

For new divisor 10 and remainder 5 by Euclid division lemma

10=5×2+0       

Hence remainder =0

So, HCF of 210,55 is 5