4/ 3; 1/ 12

\(\dfrac{4}{3}\) và \(\dfrac{1}{12}\)

RÚT GỌN VỀ PHÂN SỐ TỐI GIẢN

câu a) \(\dfrac{-147}{252}=\dfrac{-7}{12}\)

câu b) \(\dfrac{765}{900}=\dfrac{17}{20}\)

câu c) \(\dfrac{11\cdot3-11\cdot8}{17-6}=\dfrac{-5}{1}\)

câu d) \(\dfrac{3^5\times2^4}{8\times3^6}=\dfrac{2}{3}\)

câu e) \(\dfrac{84\cdot45}{49\cdot54}=\dfrac{10}{7}\)

a)\(\frac{765}{900}\)

\(=\frac{5.9.17}{5.9.20}=\frac{17}{20}\)

b)\(\frac{3^5.2^4}{8.36}\)

\(=\frac{3^5.2^4}{2^3.3^6}=\frac{2}{3}\)

c)\(\frac{84.45}{49.54}\)

\(=\frac{7.12.5.9}{7.7.6.9}=\frac{7.6.2.5.9}{7.7.6.9}=\frac{10}{7}\)

a) \(\frac{3^2.2^4}{8.3^2}=\frac{3^2.2^4}{2^3.3^2}=2\)

b)\(\frac{84.45}{49.54}=\frac{2^2.7.3^3.5}{7^2.2.3^3}=\frac{10}{7}\)

c) \(\frac{36.10.21}{2^3.63.35}=\frac{2^3.3^3.5.7}{2^3.3^2.5.7^2}=\frac{3}{7}\)

d) \(\frac{16.29-32}{16.37+32}=\frac{16.29-16.2}{16.37+2.16}=\frac{16.\left(29-2\right)}{16.\left(37+2\right)}=\frac{27}{39}=\frac{9}{13}\)

3².2⁴

= 3².2².2²

= 6².2²

= 12²

Cms ơn nha=) 

\(\frac{4^7}{4^{10}}=\frac{1}{4^3}=\frac{1}{64}\)

\(\frac{4.7.22}{33.14}=\frac{2^3.7.11}{2.7.11.3}=\frac{2^2}{3}=\frac{4}{3}\)

\(\frac{13.2-13.3}{1-14}=\frac{13\left(2-3\right)}{-13}=\frac{13.\left(-1\right)}{-13}=\frac{-13}{-13}=1\)

Đổi ra mét vuông???

hok tốt!!

đổi ra m2 ( viết dưới dạng phận số tối giản )

\(\frac{4.7.22}{55.14}=\frac{4.7.2.11}{5.11.2.7}=\frac{4}{5}\)

\(\frac{4}{5}\)

\(\frac{4.7.22}{55.14}\)

\(=\frac{4.1.2}{5.2}\)

\(=\frac{2.1.2}{5.1}\)

\(=\frac{2.2}{5}\)

\(=\frac{4}{5}\)

35/66

\(\dfrac{-63}{72}=\dfrac{-7}{8}\)

\(\dfrac{20}{-140}=\dfrac{-1}{7}\)

\(\dfrac{3.10}{5.24}=\dfrac{30}{120}=\dfrac{1}{4}\)

\(\dfrac{3.7.11}{22.9}=\dfrac{231}{198}=\dfrac{7}{6}\)

\(\dfrac{8.5-8.2}{16}=\dfrac{24}{16}=\dfrac{3}{2}\)

\(\dfrac{11.4-11}{2-13}=\dfrac{33}{-11}=-3\)