Rút gọn p/s
\(\frac{27}{36}\)
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Rút gọn:
\(\frac{18}{30}=\frac{18:6}{30:6}=\frac{3}{5}\)
\(\frac{36}{27}=\frac{36:9}{27:9}=\frac{4}{3}\)
\(\frac{64}{80}=\frac{64:16}{80:16}=\frac{4}{5}\)
\(\frac{45}{35}=\frac{45:5}{35:5}=\frac{9}{7}\)
Rút gọn các phân số sau :
\(\frac{18}{30}=\frac{18\div6}{30\div6}=\frac{3}{5}\)
\(\frac{64}{80}=\frac{64\div16}{80\div16}=\frac{4}{5}\)
\(\frac{36}{27}=\frac{36\div9}{27\div9}=\frac{4}{3}\)
\(\frac{45}{35}=\frac{45\div5}{35\div5}=\frac{9}{7}\)
\(\frac{\frac{3}{41}-\frac{12}{47}+\frac{27}{53}}{\frac{4}{41}-\frac{16}{47}+\frac{36}{53}}=\frac{3.\left(\frac{1}{41}-\frac{4}{47}+\frac{9}{53}\right)}{4.\left(\frac{1}{41}-\frac{4}{47}+\frac{9}{53}\right)}=\frac{3}{4}\)
A=7.9+7.9.2.3+7.9.3.4/21.27+21.27.2.3+21.27.3.4
=7.9(1+2.3+3.4)/21.27(1+2.3+3.4)
=7.9/21.27
=7.9/7.9.3.3
=1/9
\(\frac{27}{36}\)=\(\frac{3}{4}\)
\(\frac{42}{63}\)=\(\frac{6}{9}\)=\(\frac{2}{3}\)
\(\frac{27}{36}=\frac{27:9}{36:9}=\frac{3}{4}\)
\(\frac{42}{63}=\frac{42:21}{63:21}=\frac{2}{3}\)
\(\frac{27}{36}=\frac{27:9}{36:9}=\frac{3}{4}\)
\(\frac{3}{4}\)