- 5 ∗ 7, 20 ∗ 16
- Is ∗ commutative?
solution:
(i) 5 ∗ 7 = LCM of 5 and 7 = 35
20 ∗ 16 = LCM of 20 and 16 = 80
(ii) Is ∗ commutative?
a ∗ b = L.C.M. of an and b ∗ a = L.C.M. of b and a ∗ b = b ∗ a
Along these lines ∗ is commutative.
solution:
(i) 5 ∗ 7 = LCM of 5 and 7 = 35
20 ∗ 16 = LCM of 20 and 16 = 80
(ii) Is ∗ commutative?
a ∗ b = L.C.M. of an and b ∗ a = L.C.M. of b and a ∗ b = b ∗ a
Along these lines ∗ is commutative.