Question

срочно даю 20 баллов без решения​

Answer 1

$\Big(5\dfrac{1}{16}-1\dfrac{1}{8}\Big)\cdot \Big(\dfrac{5}{6}+\dfrac{3}{14}\Big)=\Big(\dfrac{81}{16}-\dfrac{9}{8}\Big)\cdot \dfrac{35+9}{42}=\dfrac{63}{16}\cdot \dfrac{44}{42}=\dfrac{3\cdot 11}{8\cdot 1}=\\\\\\=\dfrac{33}{8}=4\dfrac{1}{8}=4,125$