Câu 1: trang 158 - toán tiếng Anh 5
Calculate:
Tính:
a) 889972 + 96308
b) \(\frac{5}{6}\) + \(\frac{7}{12}\)
c) 3 + \(\frac{5}{7}\)
d) 926,83 + 549,67
Bài Làm:
a)
889972 + 96308 = 986280
b)
\(\frac{5}{6}\) = \(\frac{5 \times 2}{6 \times 2}\) = \(\frac{10}{12}\)
\(\frac{5}{6}\) + \(\frac{7}{12}\) = \(\frac{10}{12}\) + \(\frac{7}{12}\) = \(\frac{17}{12}\)
c)
3 = \(\frac{3 \times 7}{1 \times 7}\) = \(\frac{21}{7}\)
3 + \(\frac{5}{7}\) = \(\frac{21}{7}\) + \(\frac{5}{7}\) = \(\frac{26}{7}\) (hoặc 3 + \(\frac{5}{7}\) = \(3\frac{5}{7}\) ) ;
d)
926,83 + 549,67 = 1476,5