Usuń niewymierność z mianownika.
2√3/(3√5) =(2√3 ·√5) /(3√5·√5)= 2√15 /(3·5)=2√15 /15
4√2/2√10 =(4√2·√10)/2√10·√10)= 4√20 /(2·10) =(4√4·√5)/20 =8√5/20=2√5/5
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2√3/(3√5) =(2√3 ·√5) /(3√5·√5)= 2√15 /(3·5)=2√15 /15
4√2/2√10 =(4√2·√10)/2√10·√10)= 4√20 /(2·10) =(4√4·√5)/20 =8√5/20=2√5/5