Câu 1: Trang 130 sách giáo khoa (SGK) toán tiếng Anh lớp...

{
"answer1": "a) \(\frac{4}{5}-\frac{1}{3} = \frac{4*3}{5*3} - \frac{1*5}{3*5} = \frac{12}{15} - \frac{5}{15} = \frac{7}{15}\)",
"answer2": "b) \(\frac{5}{6}-\frac{3}{8} = \frac{5*4}{6*4} - \frac{3*3}{8*3} = \frac{20}{24} - \frac{9}{24} = \frac{11}{24}\)",
"answer3": "c) \(\frac{8}{7}-\frac{2}{3} = \frac{8*3}{7*3} - \frac{2*7}{3*7} = \frac{24}{21} - \frac{14}{21} = \frac{10}{21}\)\n d) \(\frac{5}{3}-\frac{3}{5} = \frac{5*5}{3*5} - \frac{3*3}{5*3} = \frac{25}{15} - \frac{9}{15} = \frac{16}{15}\)"
}