Bài 1 trang 158 SGK Toán 5
Đề bài
Tính:
a) 889972 + 96308; b) \(\frac{5}{6}\) + \(\frac{7}{12}\);
c) 3 + \(\frac{5}{7}\); d) 926,83 + 549,67.
Hướng dẫn giải
a) 889972 + 96308 = 986280 ;
b) \(\frac{5}{6}\) + \(\frac{7}{12}\) = \(\frac{10}{12}\) + \(\frac{7}{12}\) = \(\frac{17}{12}\) ;
c) 3 + \(\frac{5}{7}\) = \(\frac{21}{7}\) + \(\frac{5}{7}\) = \(\frac{26}{7}\) (hoặc 3 + \(\frac{5}{7}\) = \(3\frac{5}{7}\) ) ;