Question

Выразите обыкновенной дробью: 26%, 45%, 80%, 90%.
Запишите в виде процентов: о,23; 0,4; 0,7; 3/5; 7/20; 3/50.

Answer 1

26% =$frac{26}{100}= frac{13}{50}$
45% = $frac{45}{100} = frac{9}{20}$
80% = $frac{80}{100}= frac{4}{5}$
90% = $frac{90}{100} = frac{9}{10}$

0,23= 0.23 * 100 = 23%
0,4 = 0.4 * 100 = 40%
0,7 = 0.7 * 100 = 70%
3/5 = 3 : 5 * 100 = 0.6 * 100 = 60%
7/20 = 7 : 20 * 100 = 0.35 * 100 = 35%
3/50 = 3 : 50 * 100 = 0.06 * 100 = 6%