Упражнение 335. Найдите произведение: 1) 2/7 · 3/5; 2) 3/4 · 5/6; 3) 4/7 · 7/9; 4) 15/16 · 48/55; 5) 22/25 · 10/77; 6) 13/24 · 16/39; 7) 6/35 · 14/15; 8) 36/85 · 34/39.

Question

Вопрос:

Accepted Answer

\(\frac27\cdot\frac35=\frac6{35}\).
\(\frac34\cdot\frac56=\frac{15}{24}=\frac58\).
\(\frac47\cdot\frac79=\frac49\).
\(\frac{15}{16}\cdot\frac{48}{55}=\frac{45}{55}=\frac9{11}\).
\(\frac{22}{25}\cdot\frac{10}{77}=\frac4{35}\).
\(\frac{13}{24}\cdot\frac{16}{39}=\frac29\).
\(\frac6{35}\cdot\frac{14}{15}=\frac4{25}\).
\(\frac{36}{85}\cdot\frac{34}{39}=\frac{24}{65}\).

Ответ: