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1、3.723.56.283.536.8-3.9-6.125.48(9.40.52)4.87.84780.523.61026.40.253.6432+4.9-0.94.8-4.80.5(1.25-0.125)84.8100.156.59.9I56.57.0910.8-0.87.094.02+5.4+0.985.17-1.8-3.213.75-(3.75+6.48)3.681.-7.56-2.687.852.34-0.85I4.6635.6-1.8-15.6-7.20.398+0.36+3.6415.75+3.59-0.59+14.2542.5-(6.07+1.13)4.23.53201.25818
2、.769.918.763.522.50.44.780.2+3.443.9-4.1+6.1-5.90.491.41.252.5323.6-0.623.6510.13.6-3.60.815.20.2545.63.59.60.80.44.299+4.24.3612.5815.613.115.615.62.10.6510127.53.7-7.53.78.542.50.43.834.563.835.446048+975-3045498396048+75-300564875-30056098+935-104540424-7581048I97534564075358782968975-3459948+275
3、-304569063568+975-34568975345648+75-35685+975-34568+975-345548975-304548975-3046748+975-50450.4250,380,016048+975-304552.80.750.2520.5-1.074-8.355.545(267+143)(2448+864)23327+96643225727+96603025586-45812758-4580253.684.6+6.3236846-63260424-758644x14-85860424758408594783927839478191.3/749/9-4/32.8/9
4、15/36+1/273.125/6-2/934.854+1/45.63/8-3/866.4/75/9+3/75/97.5/2-(3/2+4/5)8.7/8+(1/8+1/9)9.956+5/616.5/918-142/717. 4/525/16+2/33/419.17/32-3/49/2418. 148/7-5/612/1520.32/9+1/321.5/73/25+3/722.3/142/3+1/623. 1/52/3+5/624. 9/22+1/111/225. 5/311/5+4/3简便:1. 5/2-(3/2+4/5)2. 7/8+(1/8+1/9)3. 5/6+1/2+2/3)4.
5、9/7-2/7-10/21)5. 3/7+49/9+4/76. 8/9+15/36+3/277. 5/2-(3/2+4/5)9. 9/7-(2/7-10/21)10. 1/5+(3/7+&10分数脱式:1. 1/3+3/4+1/52. 3/8+8/3-1/23. 5/6+1/12+3/44. 30/46-1/2+7/235. a11+2/6+7/336.19/8-1/2-3/47.7/25+3/10-2/58.18/121-1/2+9/119.6/17-1/51-1/3410.8/15+7/3-8/5408-12244628)604250-17155321055(108卜47)52420(327-238)(4121+2389)767115-97446912+1492405(3213-3189)5000-5623125(97-81)6942+4803304x32-15420+804-20=100(32-30)0=254-125=70(42-42)18)=7565+7535=
