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a 4/6+27/81=1
b 48/96-135/270=0
c 30303/80808+30303/484848=7/16
1) ???
2)
a, \(\frac{-22}{55}=\frac{-22:11}{55:11}=\frac{-2}{5}\)
\(\frac{-26}{65}=\frac{-26:13}{65:13}=\frac{-2}{5}\)
=> ĐPCM
b, \(\frac{114}{122}=\frac{114:2}{122:2}=\frac{57}{61}\)
\(\frac{5757}{6161}=\frac{5757:101}{6161:101}=\frac{57}{61}\)
=> ĐOCM
3)
\(\frac{30303}{80808}+\frac{303030}{484848}=\frac{15}{4}+\frac{5}{8}=\frac{30+5}{8}=\frac{35}{8}\)
~ Ủng hộ nha ae ~
1, \(\frac{5}{-7}=\frac{-5}{7}=\)\(\frac{-10}{14}\)
2, a, \(\frac{-22}{55}=\frac{-26}{65}\)vì \(-22.65=-26.55=-1430\)
b,\(\frac{114}{122}=\frac{5757}{6161}\)vì \(114.6161=122.5757=702354\)
3,\(\frac{30303}{80808}+\frac{303030}{484848}=\frac{3}{8}+\frac{5}{8}=1\)
Ta có :
\(\dfrac{30303}{80808}=\dfrac{30303:10101}{80808:10101}=\dfrac{3}{8}\)
\(\dfrac{303030}{484848}=\dfrac{303030:10101}{484848:10101}=\dfrac{30}{48}=\dfrac{5}{8}\)
Vậy :
\(\dfrac{30303}{80808}+\dfrac{303030}{484848}=\dfrac{3}{8}+\dfrac{5}{8}=1\)
\(\frac{30303}{80808}+\frac{303030}{484848}=1\)
Hk tốt
\(\frac{30303}{80808}+\frac{303030}{484848}\)
\(=\frac{3}{8}+\frac{5}{8}\)
\(=\frac{8}{8}\)
\(=1\)