Solutio: Partem fractionalem

Ut partem fractionalem numeri obtineas, potes partem integram subtrahere, quam obtinere potes numerum ad Int convertendo.

Codex

Solutio possibilis infra ostenditur:

my $n = 15.8972;
say $n - $n.Int;

🦋 Invenias programmatum in archivo fractional-part.raku.

$ raku exercises/coercion/fractional-part.raku
0.8972

Eodem programmate cum numeris negativis quoque tenta, exempli gratia:

my $n = -15.8972;
say $n - $n.Int;

Hoc in casu, eventus quoque rectus esse debet:

$ raku exercises/coercion/fractional-part.raku
-0.8972