Question

1+1*78-900:100(67+78)-0.001*0.789*0.(6)​

Answer 1

Raspuns:

$1 + 78 - 9 \times 145 - \frac{1}{1000} \times \frac{789}{1000} \times \frac{6}{9} \\ = 79 - 1305 - \frac{789}{10 {}^{6} } \times \frac{6}{9} \\ = - 1384 - \frac{789}{1000000} \times \frac{2}{3} \\ = - 1384 - \frac{263}{500000} \\ = - 1384 - \frac{263}{5 \times 10 {}^{5} } \\ = - \frac{1384 \times 500000}{500000} - \frac{263}{500000} \\ = - \frac{692000000}{500000} - \frac{263}{500000} \\ = - \frac{692 \times 10 {}^{6} }{5 \times 10 {}^{5} } - \frac{263}{5 \times 10 {}^{5} } \\ = - \frac{692 \times 10 {}^{6} - 263 }{5 \times {10}^{5} }$

Answer 2

Răspuns:

1+78-9×145-0,001×0,789×0,(6)=

=1+78-1305-1/1000×789/1000×6/9=

=1+781-1305-789/1000000×6/9=

=1+781-1305-789/500000×3/9=

=1+781-1305-789/500000×1/3=

=1+781-1305-789/1500000=

=782-1305-263/500000=

=-523/1-263/500000=

=-261500000/500000-263/500000=

=-261500263/500000=

=-523,000526