Question

please answer.............​

Answer 1

Step-by-step explanation:

$for \: two \: numbers \: a \: b \\ hcf(a \: b) \times lcm(a \: b) = a \times b \\ here \: a = \: to \: find \\ b = 18 \\ lcm(a \: 18) = 36 \\ hcf(a \: \: 18) = 2 \\ hcf(a \: \: 18) \times lcm(a \: \: 18) = 18 \times a \\ 36 \times 2 = 18a \\ 72 = 18a \\ a = 4$