Question

Розв'яжіть (1,3-5 5/8)-(2 1/16-1,7)

Answer 1

Ответ:

$(1.3 - 5 \frac{5}{8} ) - (2 \frac{1}{16} - 1.7) = ( \frac{13}{10} - \frac{45}{8} ) - ( \frac{33}{16} - \frac{17}{10} ) = ( \frac{52}{40} - \frac{225}{40} ) - ( \frac{165}{80} - \frac{136}{80} ) = - \frac{32}{40} - \frac{29}{80} = - \frac{64}{80} - \frac{29}{80} = - \frac{(64 + 29)}{80} = - \frac{93}{80} = - 1 \frac{13}{80}$