结果请用最简分数表示
121121+ 1=- =- =324554173- =- =7788125211+=- =+ =510563338- 14=5512 -12 =16+13=338+8=1- 78=1- 512=57- 57=16 + 712=910- 12=589 + 9 =1924 -1324 =
23+ 13=910 - 110 =425 -5 =12- 18 =12 - 15=47 + 37 =556+6=3+ 12=910- 3510=38+ 58=13314 +4 =7 +2 =910- 35=18 + 78 =19336 +36 =
34111+=-=778811123-=-=49131384111++= 1 --=911966311733++=-+=444888+=- =+ =-=+ =- =二、计算(能简算的要简算)
53115(1)-+(2)1-+8104244831132(3)+2-1(4)5-2+452531542233(5)-+-(6)1671571543217- ﹙-( 7 ) 2 --4388233411(8)1+5-3(9)-+3845439337(10)+-(11)1-+102015123271355(12)+﹙-(13)2-428147627115﹙+)(14)15-5+7312426511(15)1-﹙3-1(16)1
875632
227531+(17) 1+ + (18) + -815864331111(19)- (+ )(20)1112687373--(21)- (-1010124113315 )- (-) 3 ++4722248452254+3+ 1- +5151737313111581- 17 --( - )+ +121615187181010531731127++--8 +15 +8124121088