(31-14 7/15)-(27 2/3-19 3/4) Решение с дробями.Подробно расписать.Спасибо.
(31-14 7/15)-(27 2/3-19 3/4)= 1) 31-14 7/15=30 15/15-14 7/15=16 8/15 2) 27 2/3-19 3/4=83/3-79/4=332/12-237/12=95/12 3) 16 8/15-95/12=248/15-95/12=992/60-475/60= =517/60=8 37/60
31*15/15-(14*15-7)/15-((27*3+2)/3-(19*4+3)/4)=(465-217)/15-(83*4/(3*4)-79*3/(4*3))=248/15-(332-237)/12=248*4/(15*4)-95*5/(12*5)=(992-475)/60=517/60=8 37/60=8.61(6)