Câu 3: trang 149 - toán tiếng anh lớp 5Make the following fractions have amon denominator:Quy đồng...

{
"content1": "a) Find the least common multiple (LCM) of the denominators 4 and 5, which is 20. Then rewrite the fractions \(\frac{3}{4}\) and \(\frac{2}{5}\) with a common denominator of 20: \(\frac{3 \times 5}{4 \times 5} = \frac{15}{20}\) and \(\frac{2 \times 4}{5 \times 4} = \frac{8}{20}\).",
"content2": "b) Determine the LCM of the denominators 12 and 36, which is 36. Rewrite the fractions \(\frac{5}{12}\) and \(\frac{11}{36}\) with a common denominator of 36: \(\frac{5 \times 3}{12 \times 3} = \frac{15}{36}\) and the fraction \(\frac{11}{36}\) already has the same denominator.",
"content3": "c) For fractions \(\frac{2}{3}\), \(\frac{3}{4}\), and \(\frac{4}{5}\), determine the LCM of the denominators 3, 4, and 5, which is 60. Rewrite the fractions with a common denominator of 60: \(\frac{2 \times 20}{3 \times 20} = \frac{40}{60}\), \(\frac{3 \times 15}{4 \times 15} = \frac{45}{60}\), and \(\frac{4 \times 12}{5 \times 12} = \frac{48}{60}\)."
}