3 cai do deu co kha nang phan chia ,deu giup cay sinh truong va phat trien

qua trinh phan bao thi mk dong y la dung con cau hoi dau thi mk nghi la

te bao o mo phan sinh(

giup cay cao len)

them;te bao o mo phan sinh ben

va tb o mien chop re

\(\frac{3}{4}=\frac{15}{20}\) => ô = 15

\(\frac{4}{5}=\frac{12}{15}\) => ô = 15

\(\frac{-4}{9}=\frac{-16}{36}\) => ô = - 4

\(\frac{7}{13}=\frac{21}{39}\) => ô = 13