Question

12supra5·1supra18
11supra45·25supra22
3·2supra3·2intregi si 1pe2·6
2supra9·3supra10
13supra14·49supra26

Answer 1

$\displaystyle \frac{12}{5} \cdot \frac{1}{18}= \frac{12}{90} = \frac{4}{30} \\ \\ \frac{11}{45} \cdot \frac{25}{22} = \frac{275}{990} = \frac{55}{198} \\ \\ \not3 \cdot \frac{2}{\not3} \cdot 2 \frac{1}{2} \cdot 6= \not2 \cdot \frac{5}{\not2} \cdot 6=5 \cdot 6=30 \\ \\ \frac{2}{9} \cdot \frac{3}{10} = \frac{6}{90} = \frac{1}{15} \\ \\ \frac{13}{14} \cdot \frac{49}{26} = \frac{637}{364} = \frac{91}{52}$