Question

do the Circle ones and fast​

Answer 1

Answer:

d)1  f) 9

Step-by-step explanation:

(d)

since both 5 and 12 are coprime no.s(no.s having no common factors         except one) therefore their common factor is 1.

(f)

both the no.s are divisible with 9 i.e., 9 x 4=36 and 9 x 5=45

therefore their common factor is 9.

Answer 2

Answer:

d.1

f.9

Step-by-step explanation:

as 5 and 12

here 5 is a prime number  and 12 is a composite number so therefore there are only one common factor

                     and

36 and 45

both are composite number and if we see common in them it is 9 that is common