Hey Guys! How do you add,subtract,multiply and divide Fractions in Javascript based on the user's Input?

Question

Thanks Guys!

Answer 1

By implementing functions (or better classes) for handling fractions computation... or prebuilded library ^^

Implementing such library would require handling prime numbers and GCD, to be able to reduce fractions, and operation are done with basic mathematicals rules:

a/b + c/d = (a*d + c*b) / (b*d)

a/b * c/d = (a*b) / (c*d)

... and obviously:

a-b = a+(-b)

a/b = a*(1/b)

... so:

a/b - c/d = (a*d - c*b) / (b*d)

(a/b) / (c/d) = a/b * d/c

Answer 2

Fractions? I would suggest converting the fractions into float values (3/4 --> 0.75), performing the math on the float, and converting it back to a decimal. Decimal to Fraction conversion is not difficult to program a function for.

Answer 3

Bonus code/tutorial for GCD and prime factor:

https://code.sololearn.com/WPXD8LSoeiIL/?ref=app
https://code.sololearn.com/WteKxMC4vDvC/?ref=app

First part is dedicated to implementation of prime number optimized function, second one implement GCD function (using prime number function)...

Answer 4

ohh I See, Thanks Guys!