Question

Mă puteți ajuta cu exercițiul 3 va rog

Answer 1

$( \frac{12}{10} + \frac{13 - 1}{9} \times \frac{3}{20}) \div \frac{14}{100} \times 2 = ( \frac{12}{10} + \frac{12}{9} \times \frac{3}{20} ) \div \frac{14}{100} \times 2 = ( \frac{12}{10} + \frac{36}{180} ) \div \frac{14}{100} \times 2 = ( \frac{12}{10} + \frac{2}{10}) \div \frac{14}{100} \times 2 = \frac{14}{10} \times \frac{100}{14} \times 2 = \frac{10}{1} \times 2 = 20$

Answer 2

[1,2 +1,(3)·3/20 ] : 0,14 · 2
1,2 = 12/10=6/5
1,(3)=1+3/9= (9+3)/9=12/9= 4/3
0,14= 14/100=7/50
[6/5 +4/3 · 3/20]: 7/50 · 2
[ 6/5 + 1/1·1/5] · 50/7·2
 7/5·100/7=(7·20)/7= 20