利用者:こけ./数式

$-\frac{3}{4}\times -\frac{8}{6}=\frac{24}{24}=1$

$-\frac{3}{4}\times -\frac{8}{6}=\frac{2}{2}=1$

$\frac{1}{5}+\frac{3}{4}=\frac{4}{20}+\frac{15}{20}=\frac{19}{20}$

$5!=5\times 4\times 3\times 2\times 1=120$

$(5!{)}^2=14400$

$(5^2)!=15511210043330985984000000$