Applicare la formula: $\frac{a}{b}c$$=\frac{ca}{b}$, dove $a=272$, $b=981$, $c=0.9986$, $a/b=\frac{272}{981}$ e $ca/b=0.9986\left(\frac{272}{981}\right)$

Applicare la formula: $ab$$=ab$, dove $ab=0.9986\cdot 272$, $a=0.9986$ e $b=272$

Applicare la formula: $\frac{a}{b}$$=\frac{a}{b}$, dove $a=271.6192$, $b=981$ e $a/b=\frac{271.6192}{981}$