Question

90, 120 and 980 by conitinued division method

Answer 1

Answer:

Example 1: Find the HCF of 90 and 120, if their LCM is 360.

Solution:

∵ LCM × HCF = 90 × 120

⇒ HCF(90, 120) = (90 × 120)/360 = 30

Therefore, the highest common factor of 90 and 120 is 30.