Question

( 3 4/5 + 0,45) * 12/3 + ( 4,2 - 2/35 ) / 4 1/7 =

Answer 1

$(3 \frac{4}{5} + 0.45) \times \frac{12}{3} + (4.2 - \frac{2}{35} ) \div 4 \frac{1}{7} \\ ( \frac{19}{5} + \frac{9}{20} ) \times 4 + ( \frac{21}{5} - \frac{2}{35} ) \times \frac{1}{4} \times \frac{1}{7} \\ \frac{17}{4} \times 4 + \frac{29}{7} \times \frac{1}{4} \times \frac{1}{7} \\ 17 + \frac{29}{196} = \frac{3361}{196} = 17.14$

Answer 2

Ответ:

18

Пошаговое объяснение:

1) 3 4/5 + 0.45 = 3.8 + 0.45 = 4.25

2) 4.25 * 12/3 = 4.25 * 4 = 17

3) 4.2 - 2/35 = (1470-20) / 350 = 1450/350 = 29/7 = 4 1/7

4) 4/7 / 4 1/7 = 1

5) 17 + 1 = 18