Question

сократите дробь используя признаки делимости 30/42, 33/39, 45/51. 12/60, 50/100​

Answer 1

Ответ:

$\frac{30}{42} = \frac{30 \div 6}{42 \div 6} = \frac{5}{7}$

$\frac{33}{39} = \frac{33 \div 3}{39 \div 3} = \frac{11}{13}$

$\frac{45}{51} = \frac{45 \div 3}{51 \div 3} = \frac{15}{17}$

$\frac{12}{60} = \frac{12 \div 12}{60 \div 12} = \frac{1}{5}$

$\frac{50}{100} = \frac{50 \div 50}{100 \div 50} = \frac{1}{2}$