Номер 3 очень прошу заранее спасибо

1) $(4 \frac{3}{4} -2 \frac{3}{8}*6 \frac{5}{9} ):15,58=( \frac{19}{4}- \frac{19}{8}* \frac{59}{9} ): \frac{1558}{100} =$
$= \frac{19}{8}*(2- \frac{59}{9} ) * \frac{100}{1558} =- \frac{19}{8}* \frac{50}{19*41}*( \frac{59}{9} -2) =- \frac{25}{4*41}* \frac{41}{9} =- \frac{25}{36}$

2) $5 \frac{3}{8} *(-2 \frac{2}{215} )+(4 \frac{4}{5} -10 \frac{2}{7} ):2 \frac{34}{175} =- \frac{43}{8}* \frac{432}{215}+( \frac{24}{5} - \frac{72}{7} ): \frac{384}{175}=$
$= -\frac{43}{8}* \frac{54*8}{43*5}+\frac{24*7-72*5}{7*5}* \frac{7*25}{384}= -\frac{54}{5}- \frac{(360-168)*5}{384}= -\frac{54}{5}- \frac{192*5}{192*2} =$
$=- \frac{54}{5} - \frac{5}{2} = -\frac{54*2+5*5}{5*2} = -\frac{108+25}{10} = -\frac{133}{10} =-13,3$