a) $\frac{{16}}{{200}} = \frac{8}{{100}} = 8\% $
$\frac{{32}}{{800}} = \frac{4}{{100}} = 4\% $
$\frac{{12}}{{1\,200}} = \frac{1}{{100}} = 1\% $
b) $5\% = \frac{5}{{100}} = \frac{1}{{20}}$
$30\% = \frac{{30}}{{100}} = \frac{3}{{10}}$
$64\% = \frac{{64}}{{100}} = \frac{{16}}{{25}}$
$90\% = \frac{{90}}{{100}} = \frac{9}{{10}}$
c) $0,17 = \frac{{17}}{{100}} = 17\% $
$0,05 = \frac{5}{{100}} = 5\% $
$1,49 = \frac{{149}}{{100}} = 149\% $
Đúng 0
Bình luận (0)