Find the HCF and LCM or number 70, 30 and 210
Share
Find the HCF and LCM or number 70, 30 and 210
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
a brain list question good
Answer:
The lcm of 70 and 30 can be obtained like this:
The multiples of 70 are … , 140, 210, 280, ….
The multiples of 30 are …, 180, 210, 240, …
The common multiples of 70 and 30 are n x 210, intersecting the two sets above, n\neq 0 \thinspace\in\thinspace\mathbb{Z}n
=0∈Z.
In the intersection multiples of 70 ∩ multiples of 30 the least positive element is 210.
Therefore, the least common multiple of 70 and 30 is 210.