Question

помогите срочно дам 15 баллов

Answer 1

Пошаговое объяснение:

12/15=0.8

21/35=0.6

12/30=0.4

45/50=0.9

18/90=0.2

56/80=0.7

9/12=0.75

21/60=0.35

Answer 2

$\frac{12}{15} = \frac{12 \div 3}{15 \div 3} = \frac{4}{5} = 0.8$

$\frac{21}{35} = \frac{21 \div 7}{35 \div 7} = \frac{3}{5} = 0.6$

$\frac{12}{30} = \frac{12 \div 6}{30 \div 6} = \frac{2}{5} = 0.4$

$\frac{45}{50} = \frac{45 \div 5}{50 \div 5} = \frac{9}{10} = 0.9$

$\frac{18}{90} = \frac{18 \div 18}{90 \div 18} = \frac{1}{5} = 0.2$

$\frac{56}{80} = \frac{56 \div 8}{80 \div 8} = \frac{7}{10} = 0.7$

$\frac{9}{12} = \frac{9 \div 3}{12 \div 3} = \frac{3}{4} = 0.75$

$\frac{21}{60} = \frac{21 \div 3}{60 \div 3} = \frac{7}{20} = 0.35$