計算6722521,計算

2021-05-16 00:45:41 字數 5479 閱讀 7429

1樓:妖精末末

6/7÷2=【 3/7】

2/5× 2=【4/5 】

1÷2/3=【3/2 】

4-1/4=【3又3/4 】

7/8÷1=【7/8 】

1/3×1/4=【1/12 】

0×8/9=【 0】

2樓:劉向陽盼盼

6/7÷2=【 3/7 】

2/5× 2=【 4/5 】

1÷2/3=【 3/2 】

4-1/4=【3又3/4 】

7/8÷1=【7/8 】

1/3×1/4=【1/12 】

0×8/9=【 0 】

回答完畢

計算脫式 (5/6-1/4*2/3)÷1/6 (3/8-1/4)÷(8/9*3/4) 18/35÷0.6*2/3 7/8*【1÷(7/10-7/20)】 下面

3樓:匿名使用者

(5/6-1/4*2/3)

÷1/6

=(5/6-1/6)

=5/6×6/1-1/6×6/1

=5-1

=4(3/8-1/4)÷(8/9*3/4)=(3/8-1/4)÷2/3

=3/8×3/2-1/4×3/2

=9/16-3/8

=9/16-6/16

=3/16

或=(3/8-1/4)÷2/3

=1/8×3/2

=3/16

18/35÷0.6*2/3

=18/35÷3/5×2/3

=18/35×5/2

=9/7

7/8*【1÷(7/10-7/20)】

=7/8×[1÷7/20]

=7/8×[1×20/7]

=7/8×20/7

=5/2

4.67-(2.98+0.67)

=4.67-2.98-0.67

=4-2.98

=4-(3-0.02)

=4-3+0.02

=1.02

7.85*99+7.85

=7.85(99+1)

=7.85×100

=785

(51+34/39)*2/17

=51*2/17+34/39*2/17

=3*2+4/39

=6+4/39

=6又4/39

7.5*0.4*25*0.8

=25*0.3*0.4*25*0.2*4

=25*4*25*0.4*0.3*0.2

=100*10*0.06

=60102*7.8

=(100+2)*7.8

=780+15.6

=795.6

14.28÷3.5÷2

=14.28÷(3.5*2)

=14.28÷7

=2.04

2/3*1/15+14/15*2/3

=2/3(1/15+14/15)

=2/3×1

=2/3

97*97/98

=97×(1-1/98)

=97-97/98

=96又1/98

4樓:我不是他舅

(5/6-1/4*2/3)÷1/6

=(5/6-1/6)×

6=4/6×6

=4(3/8-1/4)÷(8/9*3/4)=1/8÷2/3

=1/8×3/2

=3/16

18/35÷0.6*2/3

=18/35×5/3×2/3

=6/7×2/3

=4/7

7/8*【1÷(7/10-7/20)】

=7/8×1÷7/20

=7/8×20/7

=5/2

4.67-(2.98+0.67)

=4.67-0.67-2.98

=4-2.98

=1.02

7.85*99+7.85

=7.85×(99+1)

=7.85×100

=785

計算下面各題,能簡算的要簡算。 45×(3/5+5/9) 3/14÷【6/7×(1/3+1/4)】 (7/3+7/4-7/12)×6/7

5樓:匿名使用者

45×(3/5+5/9) = 45×8/9 = 40

3/14÷【6/7×(1/3+1/4)】= 3/14÷【6/7×12/7】= 3/14÷2 = 3/28

(7/3+7/4-7/12)×6/7 = 7/3×6/7+7/4×6/7-7/12×6/7 = 2+3/2-1/2 = 3

(2/3-5/9×3/5)÷7/16 =(2/3-1/3)÷7/16 = 1/3*16/7 = 16/21

1/9×3+1/9×5+1/9 = 3/9+5/9+1/9 = 9/9 = 1

7/8×3/7+7/8 = 3/8+7/8 = 10/8 = 5/4

(1/2+11/8×3/2)÷1/2 = (1/2+11/8×3/2)×2 = 1/2×2+11/8×3/2×2 = 1 + 33/8 = 41/8

(1/3+1/5+1/15)×15 = 1/3×15 +1/5×15+1/15×15 = 5+3+1 = 9

簡便計算: 1. 3.625÷5/32+6又2/5×3/8+6.4 2. 45÷5/8+1.6+4.4×1又3/5 3. 8/9×【3/4-(7/16-0.25)】

6樓:匿名使用者

1. 3.625÷5/32+6又2/5×3/8+6.4=3.625×32/5+

6.4×3/8+6.4×1

=3.625×6.4+6.4×0.375+6.4×1=6.4×(3.625+0.375+1)

=6.4×5

=322. 45÷5/8+1.6+4.

4×1又3/5=45×8/5+1.6×1+4.4×1.

6=45×1.6+1.6×1+4.

4×1.6=1.6×(45+1+4.

4)=1.6×50.4

=1.6×(50+0.4)

=1.6×50+1.6×0.4

=80+0.64

=80.64

3. 8/9×【3/4-(7/16-0.25)】=8/9×【3/4-(7/16-1/4)】=8/9×【3/4-7/16+1/4】

=8/9×【3/4+1/4-7/16】

=8/9×【1-7/16】

=8/9×9/16

=1/2

4. 6.3×29又4/5+2.98×37=6.3×29.8+2.98×37

=63×2.98+2.98×37

=2.98×(63+37)

=2.98×100

=298

5. 3.6×31又2/5+314×0.

63+3.14=3.6×31.

4+314×0.63+3.14=36×3.

14+3.14×63+3.14×1=3.

14×(36+63+1)

=3.14×100

=314

6. 72×61又3/10+73.8*2又4/5=72×61.3+73.8×2.8

=72×61.3+(72×1.025×2.8)=72×61.3+72×(1.025×2.8)=72×61.3+72×2.87

=72×(61.3+2.87)

=72×64.17

=4620.24

7. 1/5+51/5+501/5+5001/5+50001/5=1/5+10又1/5+100又1/5+1000又1/5+10000又1/5

=(10+100+1000+10000)+(1/5+1/5+1/5+1/5+1/5)

=11110+1

=11111

7樓:妙酒

1. 3.625÷5/32+6又2/5×3/8+6.4=3又5/8x32/5+32/5x3/8+6.4=(3又5/8+3/8)x6.4+6.4

=4x6.4+6.4

=(4+1)x6.4

=5x6.4

=322. 45÷5/8+1.6+4.4×1又3/5=45x8/5+8/5+4.4x8/5

=(45+1+4.4)x8/5

=(50+0.4)x8/5

=50x8/5+0.4x8/5

=80+0.64

=80.64

3. 8/9×【3/4-(7/16-0.25)】=8/9x(3/4-7/16+1/4)

=8/9x(1-7/16)

=8/9x9/16

=1/2

4. 6.3×29又4/5+2.98×37=6.3x29.8+29.8x0.1x37=29.8x(6.3+3.7)

=29.8x10

=298

5. 3.6×31又2/5+314×0.

63+3.14=3.6x31.

4+31.4x10x0.63+31.

4x0.1=31.4x(3.

6+6.3+0.1)

=31.4x10

=314

6. 72×61又3/10+73.8*2又4/5=72x61.3+73.8x2.8

=4413.6+206.64

=4620.24

7. 1/5+51/5+501/5+5001/5+50001/5=1/5+10又1/5+100又1/5+1000又1/5+10000又1/5

=10000+1000+100+10+1/5x5=11111

8樓:圍觀者

1.原式=3.625*(32/5)+(32/5)*0.375+32/5=(32/5)*(3.625+0.375+1)=(32/5)*5=32

2.原式=45*(8/5)+8/5+4.4*(8/5)=(8/5)*(45+1+4.4)=80.64

3.原式=8/9 *(3/4-7/16+1/4)=8/9 * 9/16=1/2

4.原式=6.3*29.8+2.98*37=2.98*(63+37)=2.98*100=298

5.原式=3.6*31.4+314*0.63+3.14=3.14*(36+63+1)=3.14*100=314

6.題沒抄錯吧

7.原式=1/5+10+1/5+100+1/5+1000+1/5+10000+1/5=11111

【簡算】 (3/4-2/3)÷1/5 4/5×7/8+7/8÷5 (1-8/15×3/4)÷3/5 (3/8+2/17)×8+1/17

9樓:新野旁觀者

(3/4-2/3)÷1/5

=1/12ch35

=5/12

4/5×

7/8+7/8÷5

=(4/5+1/50×7/8

=1×7/8

=7/8

(1-8/15×3/4)÷3/5

=(1-2/5)×5/3

=3/5×5/3

=1(3/8+2/17)×8+1/17

=3/8×8+(16/17+1/17)

=3+1=4

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