36/48= 3/4

-27/45= -3/5

-26/-39= 2/3

= 3/4

= -3/5

= 2/3

\(\dfrac{36}{48}=\dfrac{36:12}{48:12}=\dfrac{3}{4}\\ \dfrac{-27}{45}=\dfrac{-27:9}{45:9}=\dfrac{-3}{5}\\ \dfrac{-26}{-39}=\dfrac{26}{39}=\dfrac{26:13}{39:13}=\dfrac{2}{3}\)

a, 18/54 = 1/3 

b, 1/3 = 1/5 +2/15

a) \(\frac{18}{54}=\frac{1}{3}\)

b) \(\frac{18}{54}=\frac{1}{5}+\frac{2}{15}\)

~Học tốt~

5

5

Đây là phân số tối giản nên ko rút gọn được nữa nhé bạn

Đã tối giản !

phân số tối giản rồi ạ

18/27=2/3

\(\dfrac{18}{27}=\dfrac{2}{3}.\)

\(\dfrac{18}{27}=\dfrac{18\div9}{27\div9}=\dfrac{2}{3}\)

\(\dfrac{-18}{45}=-\dfrac{2}{5}\)

\(\dfrac{-18}{45}=\dfrac{-18:9}{45:9}=\dfrac{-2}{5}\)

-2/5

\(\dfrac{18}{28}=\dfrac{18:2}{28:2}=\dfrac{9}{14}\)

\(\dfrac{90}{120}=\dfrac{30.3}{30.4}=\dfrac{3}{4}\)

\(\dfrac{15}{25}=\dfrac{5.3}{5.5}=\dfrac{3}{5}\)

\(\dfrac{18}{45}=\dfrac{9.2}{9.5}=\dfrac{2}{5}\)

\(\dfrac{36}{64}=\dfrac{4.9}{4.16}=\dfrac{9}{16}\)

\(\dfrac{32}{72}=\dfrac{8.4}{8.9}=\dfrac{4}{9}\)

\(\dfrac{84}{49}=\dfrac{7.12}{7.7}=\dfrac{12}{7}\)

\(\dfrac{90}{120}=\dfrac{3}{4};\dfrac{15}{25}=\dfrac{3}{5};\dfrac{18}{45}=\dfrac{2}{5};\dfrac{36}{64}=\dfrac{9}{16};\dfrac{32}{72}=\dfrac{4}{9};\dfrac{84}{49}=\dfrac{12}{7}\)

\(\dfrac{3}{4},\dfrac{3}{5},\dfrac{2}{5},\dfrac{9}{16},\dfrac{4}{9},\dfrac{12}{7}\)

\(\frac{18+18.7}{18}=\frac{18.\left(7+1\right)}{18}=\frac{1.8}{1}=8\)

\(\frac{16559}{900}\) là kết quả đúng !

k mik nha