Câu 2: Trang 60 sách VNEN toán 4
Tính (theo mẫu):
$4:\frac{3}{7}$ $5:\frac{1}{4}$ $6:\frac{1}{7}$
Bài Làm:
$4:\frac{3}{7}=\frac{4\times 7}{3}=\frac{28}{3}$
$5:\frac{1}{4}=\frac{5\times 4}{1}=\frac{20}{1}$
$6:\frac{1}{7}=\frac{6\times 7}{1}=\frac{42}{1}$