Question

What’s the lowest common denominator out of 1 2/5, 2 2/4, and 3 4/10?
Can you also tell me the steps of how to get them. I’m practicing my fractions and I can’t get it

Answer 1

the LCD is 20
Since 4 and 5 have no factors in common, their LCD is just 4*5
As it happens, 20 is also a multiple of 10, so 10 doesn't change anything.

check out Least Common Multiple for integers. It's the same thing.

Answer 2

As it happens, your fractions can be reduced to 1 2/5, 2 1/2, and 3 2/5
The LCD for 1/2 and 1/5 is just 10.

Answer 3

In google type:

common denominator calculator

when you see list of results go on:

LCD Calculator - Least Common Denominator - Calculator Soup

Paste your numbers separated by commas and click on: Calculate

you will see solution with steps.

On - Calculator Soup you can practicing fractions.

Answer 4

Thank you!