54:(32:(4:23))=?
We convert the exercise with the innermost parentheses into a multiplication exercise, inverting the numerator and the denominator:
We add the 4 to the numerator of the fraction in the multiplication exercise:
Again, we convert the exercise with the innermost parentheses into a multiplication exercise, inverting the numerator and the denominator:
We convert the multiplication exercise between fractions into a single exercise, and we obtain:
We simplify the 2 and the 3 in the numerator and denominator, and we obtain:
We convert the exercise with the secondary parentheses into a multiplication exercise, inverting the numerator and the denominator:
We convert the numerator of the fraction into a sum exercise:
We separate into a sum exercise between fractions:
We obtain: