3/8+9/16-1/2等于几分之几

5/8一(1/8十3/10)等于几分之几?_百度知道
5/8一(1/8十3/10)等于几分之几?
5/8一(1/8十3/10)等于几分之几?
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五言古诗贼退示官吏·并序(元结)同从弟南斋玩月忆山阴崔少府[1]
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注:/为几分之几1.3/7 × 49/9 - 4/3 2.8/9 × 15/36 + 1/27 3.12× 5/6 – 2/9 ×3 4.8× 5/4 + 1/4 5.6÷ 3/8 – 3/8 ÷6 6.4/7 × 5/9 + 3/7 × 5/9 7.5/2 -( 3/2 + 4/5 ) 8.7/8 + ( 1/8 + 1/9 ) 9.9 × 5/6 + 5/6 10.3/4 × 8/9 - 1/3 11.7 × 5/49 + 3/14 12.6 ×( 1/2 + 2/3 ) 13.8 × 4/5 + 8 × 11/5 14.31 × 5/6 – 5/6 15.9/7 - ( 2/7 – 10/21 ) 16.5/9 × 18 – 14 × 2/7 17.4/5 × 25/16 + 2/3 × 3/4 18.14 × 8/7 – 5/6 × 12/15 19.17/32 – 3/4 × 9/24 20.3 × 2/9 + 1/3 21.5/7 × 3/25 + 3/7 22.3/14 ×× 2/3 + 1/6 23.1/5 × 2/3 + 5/6 24.9/22 + 1/11 ÷ 1/2 25.5/3 × 11/5 + 4/3 26.45 × 2/3 + 1/3 × 15 27.7/19 + 12/19 × 5/6 28.1/4 + 3/4 ÷ 2/3 29.8/7 × 21/16 + 1/2 30.101 × 1/5 – 1/5 × 21 31.50+160÷40 (58+370)÷(64-45) 32.120-144÷18+35 33.347+45×2-4160÷52 34(58+37)÷(64-9×5) 35.95÷(64-45) 36.178-145÷5×6+42 420+580-64×21÷28 37.812-700÷(9+31×11) (136+64)×(65-345÷23) 38.85+14×(14+208÷26) 39.(284+16)×(512-8208÷18) 40.120-36×4÷18+35 41.(58+37)÷(64-9×5) 42.(6.8-6.8×0.55)÷8.5 43.0.12× 4.8÷0.12×4.8 44.(3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷1.6 45.6-1.6÷4= 5.38+7.85-5.37= 46.7.2÷0.8-1.2×5= 6-1.19×3-0.43= 47.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9 48.10.15-10.75×0.4-5.7 49.5.8×(3.87-0.13)+4.2×3.74 50.32.52-(6+9.728÷3.2)×2.5 51.[(7.1-5.6)×0.9-1.15] ÷2.5 52.5.4÷[2.6×(3.7-2.9)+0.62] 53.12×6÷(12-7.2)-6 (4)12×6÷7.2-6
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我就是冲分来滴~好辛苦,你可要给我分啊!1.3/7 × 49/9 - 4/3=(3×49)/(7×9)-4/3=147/63-4/3=147/63-84/63=63/63=12.8/9 × 15/36 + 1/27 =(8×15)/(9×36)+ 1/27=120/324 + 12/324=132/324=43/1083.12× 5/6 – 2/9 ×3 =10 - 2/3=28/34.8× 5/4 + 1/4 =10 + 1/4=41/45.6÷ 3/8 – 3/8 ÷6 =16 - 1/16=255/166.4/7 × 5/9 + 3/7 × 5/9 =20/63 + 15/63=35/63=5/97.5/2 -( 3/2 + 4/5 ) =25/10 - 23/10=2/10=1/58.7/8 + ( 1/8 + 1/9 ) =63/72 + 17/72=80/72=10/99.9 × 5/6 + 5/6=(9+1)×5/6=10×5/6=25/310.3/4 × 8/9 - 1/3 =24/36 - 12/36=12/36=1/311.7 × 5/49 + 3/14=5/7 + 3/14=10/14 + 3/14=13/1412.6 ×( 1/2 + 2/3 )=6×5/6 =513.8 × 4/5 + 8 × 11/5 =32/5 + 88/5=120/5=2414.31 × 5/6 – 5/6=(31-1)× 5/6=30×5/6=25 15.9/7 - ( 2/7 – 10/21 )=27/21 - 6/21 + 10/21=31/2116.5/9 × 18 – 14 × 2/7=10 - 4=6 17.4/5 × 25/16 + 2/3 × 3/4 =5/4 + 2/4=7/418.14 × 8/7 – 5/6 × 12/15 =16 - 3/4=61/419.17/32 – 3/4 × 9/24 =17/32 - 9/32=8/32=1/420.3 × 2/9 + 1/3 =2/3 + 1/3=121.5/7 × 3/25 + 3/7 =3/35 + 15/35=18/3522.3/14 ×× 2/3 + 1/6 =1/7 + 1/6=13/4223.1/5 × 2/3 + 5/6 =2/15 + 5/6=4/30 + 25/30=29/3024.9/22 + 1/11 ÷ 1/2 =1/2 ÷ 1/2=125.5/3 × 11/5 + 4/3 =11/3 + 4/3=15/3=526.45 × 2/3 + 1/3 × 15 =30+5=3527.7/19 + 12/19 × 5/6 =1× 5/6=5/628.1/4 + 3/4 ÷ 2/3 =1 ÷ 2/3=3/229.8/7 × 21/16 + 1/2 =3/2 + 1/2=230.101 × 1/5 – 1/5 × 21 =101/5 - 21/5=80/5=1631.50+160÷40 (58+370)÷(64-45) 题目不清楚32.120-144÷18+35 =120-8+35=14733.347+45×2-4160÷52 =347 + 90 - 80=35734(58+37)÷(64-9×5) =95 ÷ 19=535.95÷(64-45) =95÷19=536.178-145÷5×6+42 420+580-64×21÷28 题目不清楚37.812-700÷(9+31×11) (136+64)×(65-345÷23)题目不清楚38.85+14×(14+208÷26) =85+14×22=85+308=39639.(284+16)×(512-8208÷18)40.120-36×4÷18+35 =120-8+35=14741.(58+37)÷(64-9×5)=95 ÷ 19=542.(6.8-6.8×0.55)÷8.5=043.0.12× 4.8÷0.12×4.8 =144.(3.2×1.5+2.5)÷1.6 = 845.6-1.6÷4=246.7.2÷0.8-1.2×5=347.6.5×(4.8-1.2×4)=048.10.15-10.75×0.4-5.7=10.15-4-5.7=0.4549.5.8×(3.87-0.13)+4.2×3.74 =5.8×3.57 +4.2×3.74=20.706 + 15.708=4.99850.32.52-(6+9.728÷3.2)×2.5 =32.52 - 7.6=25.1651.[(7.1-5.6)×0.9-1.15] ÷2.5 =0.2÷2.5=2/2552.5.4÷[2.6×(3.7-2.9)+0.62] =5.4÷2.6×1.4253.12×6÷(12-7.2)-6= 6 ÷ (—1.2)= —5
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扫描下载二维码2/13+1/3等于几分之几要过程。_百度知道
2/13+1/3等于几分之几要过程。
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=2x3/13x3+1x13/3x13=(6+13)/39=19/39
2/13+1/3=6/39+13/39=19/39
=3/16=1/5
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