Question

20 БАЛЛОВ СРОЧНО!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

$1)\ \ 5\dfrac{1}{4}=5\dfrac{1\cdot 2}{4\cdot 2}=5\dfrac{2}{8}\ \ \ ;\ \ \ 5\dfrac{1}{4}=5\dfrac{1\cdot 3}{4\cdot 3}=5\dfrac{3}{12}\ \ \ ;\\\\\\{}\ \ \ \ 5\dfrac{1}{4}=4\dfrac{1\cdot 7}{4\cdot 7}=5\dfrac{7}{28}$

$2)\ \ 8\dfrac{1}{7}=8\dfrac{1\cdot 3}{7\cdot 3}=8\dfrac{3}{21}\ \ \ ;\ \ \ 8\dfrac{1}{7}=8\dfrac{1\cdot 5}{7\cdot 5}=8\dfrac{5}{35}\ \ ;\\\\\\{}\ \ \ \ \ 8\dfrac{1}{7}=8\dfrac{1\cdot 7}{7\cdot 7}=8\dfrac{7}{49}$