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1、分数混合运算100道1/3-1/4+1=3-1/2+2/3=(2-3/4+1/2)*(3-3/4)=1-1/3+2*4=6/7+3/4-2/5=(7/8-6/7)*2=5-1/2+3-2/5=6*2-1/3+2/3=3+3-1/2=5/6+4/7-1=(2/5-3/8)*(1/4+2/7)=3-1/4+3*(1/5+2/9)=2/5-1/3+2=3-(1/5+1/2)*6=5-3+2/5*(1/2+2/5)=1/2+3/4+4/7=(3+1/4-2/5)*(2-2/3+1/3)=3/4+5/6+7/8+1/2=2/31/21/42/526/139/262/32/91/24/53/8105/91
2、/641/21/44/51/83/45/74/31/2238/91/271/2785/62/541/23/45/124/58/93/43/83/45/85/43/239/119/7-2/710/213/45/918142/74/525/16+2/332/9+1/35/73/25+3/73/142/3+1/61/52/3+5/65/6157/19+12/19452/3+1/32/38/721/16+1/21/4+3/41011/51/5215016040347+452-41605258+3764-959564-45178-14556+42420+580-642128812-7009+311128
3、4+16512-820818120-36418+3558+3764-95(6.8-6.80.55)8.50.124.80.124.83.21.5+2.51.63.21.5+2.51.66-1.64=5.38+7.85-5.37=7.20.8-1.25=6-1.193-0.43=10.15-10.750.4-5.75.83.87-0.13+4.23.742.532.52-6+9.7283.22.57.1-5.60.9-1.155.42.63.7-2.9+0.6212612-7.2-61267.2-62/31/21/42/5105/91/641/22/59/109/205/93/102/72/51
4、/21/44/51/83/45/74/31/2238/91/271/2785/62/541/23/45/124/58/93/43/83/45/85/43/239/110.61.70.90.24+1.255.42.731.852.29-3.56690+4752-398148+332864-753602432+7302100-94+4854247+18272536-72036018108063-5480528+9125-617885284138-904264+318-828069174+20926-9000814-278+322151406+7359453168-782838+504796-50406307285+3000-37236546210-195301/22/59/109/20