Question

3 3/10:(8/25+9/20)-1 29/35*1 1/4

Answer 1

Ответ:

$3 \frac{29}{35}$

Пошаговое объяснение:

$3 \frac{3}{10} \div ( \frac{8}{25} + \frac{9}{20} ) - 1 \frac{29}{35} \times 1 \frac{1}{4} = \frac{33}{10} \div \frac{77}{100} - \frac{64}{35} \times \frac{1}{4} = \frac{3}{10 } \times \frac{100}{77} - \frac{16}{35} = 3 \times \frac{10}{7} - \frac{16}{35} = \frac{30}{7} - \frac{16}{35} = \frac{150 - 16}{35} = \frac{134}{35} = 3 \frac{29}{35}$

Answer 2

Ответ:

2

Пошаговое объяснение:

3 3/10:(8/25+9/20)-1 29/35*1 1/4=

=(33/10):(8/25+9/20)-(64/35*5/4){

=(33/10):((8*20+9*25)/(25*20))-(64/35*5/4)=

=(33/10):((160+225)/500))-(64/35*5/4)=

=(33/10):(385/500)-(64/35*5/4)=

=(33/10*500/385)-(64/35*5/4)=

=((33*500)/(10*385))-((64*5)/(35*4))=

=(16500/3850)-(320/140)=

=(30/7)-(16/7)=14/7=2

Ответ: 2