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3. Find the LCM of the following numbers by common division method.a) 27.90b) 30, 45c) 144, 36d) 36, 42, 28e) 50, 25, 75 f) 24, 36, 72​

Answer»

a) factors 27 = 3*3*3       factors of 90= 3*3*5*2 hence LCM= 3*3*3*5*2= 270b) 30= 3*5*2  45= 3*3*5hence LCM= 3*3*5*2c)   144= 3*3*2*2*2*2      36 = 3*3*2*2hence LCM= 3*3*2*2*2*2=144d) 36= 3*3*2*2     42=3*3*7    28 = 7*2*2hence LCM= 7*2*2*3*3 =252e) 50 = 5*5*2    25 = 5*5   75= 5*5*3hence LCM= 5*5*2*3 =150f) 36 =3*3*2*2   72= 3*3*2*2*2 hence LCM= 3*3*2*2*2= 72   Step-by-step explanation:


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