12/5+33/10

Tính: $\dfrac{{12}}{5} + \dfrac{{33}}{{10}}$

2 Câu trả lời

Tap nguyen
57/10
Trả lời hay
1 Trả lời 30/10/22
Biết Tuốt
Ta có:
$\dfrac{{12}}{5} + \dfrac{{33}}{{10}} = \dfrac{{12\,{\rm{x}}\,2}}{{5{\rm{x}}\,2}} + \dfrac{{33}}{{10}} = \dfrac{{24}}{{10}} + \dfrac{{33}}{{10}} = \dfrac{{24 + 33}}{{10}} = \dfrac{{57}}{{10}}$
0 Trả lời 31/10/22