Question

find the LCM of following a) 360 and 420 b) 144 and 360 c)30 & 40​

Answer 1

Answer:

10 is the LCM of 30 and 40

Step-by-step explanation:

Answer 2

A :  360 = 2 × 2 × 2 × 3 × 3 × 5

420 = 2 × 2 × 3 × 5 × 7

LCM = 2 × 2 × 2 × 3 × 3 × 5 × 7

LCM = 2520

B : 144 = 2 × 2 × 2 × 2 × 3 × 3

360 = 2 × 2 × 2 × 3 × 3 × 5  

LCM = 2 × 2 × 2 × 2 × 3 × 3 × 5

LCM = 720

C : 30 = 2 × 3 × 5  

40 = 2 × 2 × 2 × 5

LCM = 2 × 2 × 2 × 3 × 5

LCM = 120