Răspuns :
[tex]\displaystyle\bf\\\frac{27}{10}+1,\!47+2,\!23=\\\\\\=\frac{27}{10}+\frac{147}{100}+\frac{223}{100}=\\\\\\=\frac{270}{100}+\frac{147}{100}+\frac{223}{100}=\\\\\\=\frac{270+147+223}{100}=\\\\\\=\frac{270+147+223}{100}=\frac{270+370}{100}=\frac{640}{100}=\frac{64}{10}=\boxed{\bf6,\!4}[/tex]
Răspuns:
Explicație pas cu pas:
27/10= 2,7
2,7 + 1,47 +2,23 =
2,7 + 3,7 =
6,4
sau
27/10= 270/100
1,47 = 147/100
2,23= 223/100
270/100+147/100+223/100=
640/100=
6,4
succes