\(\frac{a}{18}=\frac{4}{3}\Rightarrow a.3=4.18\Rightarrow a=\frac{4.18}{3}=4.6=24\)
\(\frac{20}{b}=\frac{4}{3}\Rightarrow b.4=20.3\Rightarrow b=\frac{20.3}{4}=5.3=15\)
\(\frac{c}{21}=\frac{4}{3}\Rightarrow c.3=21.4\Rightarrow c=\frac{21.4}{3}=7.4=28\)
Vậy a = 24;b = 15; c = 28.
\(\frac{a}{18}=\frac{4}{3}\Rightarrow3.a=4.18\Rightarrow a=24\)
\(\frac{24}{18}=\frac{20}{b}\Rightarrow24.b=20.18\Rightarrow b=15\)
\(\frac{20}{15}=\frac{c}{21}\Rightarrow15.c=20.21\Rightarrow c=28\)
Vậy a=24; b=15;b=28
Ta có a/18=4/3 , vậy a=18.4:3=24
Ta có 20/b=4/3 , vậy b=20.3:4=15
Ta có c/21=4/3 , vậy c=21.4:3=28
Vậy a=24 , b=15 , c=28
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