. Find a MATLAB built in function that is used to find the lowest common denominator of fractions.

Hello, I new to Matlab and I need help with this one problem.

"Find a MATLAB built in function that is used to find the lowest common denominator of fractions. Then use that function to show that the lowest common denominator of (hint, your input and solution will only contain one denominator values.'

[Star Strider]

Use your favourite search engine (I like DuckDucGo) and search on:

lowest common denominator matlab

[David Durost]

I've already done a search and that is why I finally came here. I'm asking for help with writing the function.

Would it be something like L = lcm(A,B) or

builtin(function,x1,...,xn)[y1,...,yn] = builtin(function,x1,...,xn)?

[Walter Roberson]

The first of those. builtin() has some fairly specific uses. I have rarely had need for it.

[David Durost]

Okay, I 've tried

x=(1/4);

y=(1/10);

L=lcd(x,y);

and

L=lcd(4,10);

built in(function,4,10);

I would really appericate help with the syntax?

Answer 1

[David Durost]

I would say thanks however, 'com=1cm(d1,d2); is a Unexpected MATLAB expression. I don't appericate the concending remark of how easy this code is. It may be easy for you but not everyone can be a genious like you.

[Star Strider]

com=1cm(d1,d2);
    ↑

[Walter Roberson]

lcm(4,10) is 20. What do you get when you multiply 1/4 by 20? How many 20'th is 1/4 ? What do you get when you multiply 1/10 by 20? How many 20'th is 1/10 ?

[Walter Roberson]

Be sure to distinguish between 'l' (lower-case L) and '1' (digit for the number One)

Answer 2

[Walter Roberson]

[n1, d1] = rat(1/4);
[n2, d2] = rat(1/10);
com = lcm(d1, d2);

Now that you have the least common multple of the denominators, you can calculate the equivalent fractions. The code is quite easy, but I will not provide it as you are obviously working on an assignment.

Answer 3

[Cate Wallace]

lcm(d1,d2)

Hope this helps!