谢谢·
9405-2940÷28×21 920-1680÷40÷7 690+47×52-39897-12×6+4326×4-125÷5148+3328÷64-75360×24÷32+730 2100-94+48×5451+(2304-2042)×23 4215+(4361-716)÷81 (247+18)×27÷2536-720÷(360÷18) 1080÷(63-54)×80(528+912)×5-61788528÷41×38-904 264+318-8280÷69 (174+209)×26- 9000814-(278+322)÷151406+735×9÷45 3168-7828÷38+504796-5040÷(630÷7)285+(3000-372)÷36546×(210-195)÷303/7 × 49/9 - 4/38/9 × 15/36 + 1/2712× 5/6 – 2/9 ×36÷ 3/8 – 3/8 ÷64/7 × 5/9 + 3/7 × 5/95/2 -( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 ) 9 × 5/6 + 5/63/4 × 8/9 - 1/37 × 5/49 + 3/14 6 ×( 1/2 + 2/3 )8 × 4/5 + 8 × 11/531 × 5/6 – 5/69/7 - ( 2/7 – 10/21 ) 5/9 × 18 – 14 × 2/74/5 × 25/16 + 2/3 × 3/4 14 × 8/7 – 5/6 × 12/15 17/32 – 3/4 × 9/243 × 2/9 + 1/3 5/7 × 3/25 + 3/7 3/14 ×× 2/3 + 1/6 1/5 × 2/3 + 5/69/22 + 1/11 ÷ 1/2 5/3 × 11/5 + 4/345 × 2/3 + 1/3 × 157/19 + 12/19 × 5/6 1/4 + 3/4 ÷ 2/38/7 × 21/16 + 1/2 101 × 1/5 – 1/5 × 2150＋160÷40(58+370)÷(64-45)120-144÷18+35347+45×2-4160÷5295÷(64-45)178-145÷5×6+42420+580-64×21÷28812-700÷(9+31×11) (136+64)×(65-345÷23)85+14×(14+208÷26)(284+16)×(512-8208÷18)120-36×4÷18+35(58+37)÷(64-9×5)(6.8-6.8×0.55)÷8.50.12× 4.8÷0.12×4.8(3.2×1.5+2.5)÷1.67.2÷0.8-1.2×5= 6-1.19×3-0.43=6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.910.15-10.75×0.4-5.75.8×(3.87-0.13)+4.2×3.7432.52-(6+9.728÷3.2)×2.5(7.1-5.6)×0.9-1.15] ÷2.55.4÷[2.6×(3.7-2.9)+0.62]12×6÷(12-7.2)-6 2/3÷1/2－1/4×2/52－6/13÷9/26－2/32/9＋1/2÷4/5＋3/810÷5/9＋1/6×41/2×2/5＋9/10÷9/205/9×3/10＋2/7÷2/5 1/2＋1/4×4/5－1/83/4×5/7×4/3－1/223－8/9×1/27÷1/278×5/6＋2/5÷4
分数加减乘除混合运算带答案_给我出50道分数加减乘除四则混合运算题（只需题目不需答案）...
