Пошаговое объяснение:

1

(-24)+(+13 3/4)-(8 1/2)-(-25,27)=

= - 24+13,75-8,5+25,27=6,52

2

53 1/7+(-8 5/14)-(+1 11/14)-(+3,9)+(+1,08)=

=372/7-117/14-25/14-3,9+1,08=

=(744-117-25)/14-3,9+1,08=

=602/14-3,9+1,08=43-3,9+1,08=40,18

3

(-2 2/9)+(-8 5/18)-(-3)-(+12 1/4)+(-10 1/4)+(+100 27/29)=

= - 20/9-149/18+3-49/4-41/4+2927/29=

=( - 2320-8642+3132-12789+105372)/1044=

=84753/1044=9417/116=81 21/116