$15$% $=$ $\frac{15}{100}$ $=$ $\frac{3}{20}$ $=$ $0.15$ $30$% $=$ $\frac{30}{100}$ $=$ $\frac{3}{10}$ $=$ $0.3$ Bình luận
$15$% $=$ $\frac{15}{100}$ $=$ $\frac{3}{20}$ $=$ $0.15$
$30$% $=$ $\frac{30}{100}$ $=$ $\frac{3}{10}$ $=$ $0.3$
$\text{15% = $\dfrac{15}{100}$ = 0,15.}$
$\text{30% = $\dfrac{30}{100}$ = 0,3.}$