Câu 3: Trang 138 sách giáo khoa (SGK) toán tiếng Anh lớp...

{
"content1": "a) To calculate \(\frac{3}{4} \times \frac{5}{6}\), we first multiply the numerators together (3 x 5 = 15) and then multiply the denominators together (4 x 6 = 24). So the result is \(\frac{15}{24}\). We can simplify this fraction by dividing both the numerator and denominator by 3 to get \(\frac{5}{8}\).",
"content2": "b) To calculate \(\frac{4}{5} \times 13\), we multiply the fraction by the whole number. First, we convert the whole number 13 to a fraction by writing it as \(\frac{13}{1}\). Then, we multiply the numerators (4 x 13 = 52) and the denominators (5 x 1 = 5) together to get the result of \(\frac{52}{5}\). This fraction cannot be simplified further.",
"content3": "c) To calculate 15 x \(\frac{4}{5}\), we first convert the whole number 15 to a fraction by writing it as \(\frac{15}{1}\). Then, we multiply the numerators (15 x 4 = 60) and the denominators (1 x 5 = 5) together to get the result of \(\frac{60}{5}\). This fraction can be simplified by dividing both the numerator and denominator by 5 to get \(\frac{12}{1}\) or simply 12."
}