DAU COROANA VA ROG REPEDE
EX 13
DAU 50 DE PUCTE

Răspuns:
21/140=21:140=0,15
27/75=27:75=0,36
33/176=33:176=0,1875
51/120=51:120=0,425
49/875=0,056
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36/15²=36/225=36:225=0,16
(2·3³·7⁵)/(5·21³)=(2·3³·7⁵)/(5·3³·7³)=(2·7²)/5=98/5=98:5=19,6
(11·2¹⁰·5⁸)/(2¹⁰·5¹⁰)=11/5²=11/25=11:25=0,44