3/8×(7/8+1/6)÷3/4 9/10×(5/6-2/5)÷13/251+3又1/6+5又1/12+7又1/20+9又1/30+11又1/42

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/09 04:37:33
3/8×(7/8+1/6)÷3/4 9/10×(5/6-2/5)÷13/251+3又1/6+5又1/12+7又1/20+9又1/30+11又1/42

3/8×(7/8+1/6)÷3/4 9/10×(5/6-2/5)÷13/251+3又1/6+5又1/12+7又1/20+9又1/30+11又1/42
3/8×(7/8+1/6)÷3/4 9/10×(5/6-2/5)÷13/25
1+3又1/6+5又1/12+7又1/20+9又1/30+11又1/42

3/8×(7/8+1/6)÷3/4 9/10×(5/6-2/5)÷13/251+3又1/6+5又1/12+7又1/20+9又1/30+11又1/42
3/8×(7/8+1/6)÷3/4
=3/8×(1/8+1/6)×4/3
=1/2×(1/8+1/6)
=1/2×(3/24+4/24)
=1/2×7/24
=7/48
9/10×(5/6-2/5)÷13/25
=9/10×(25/30-12/30)
=9/10×13/30×25/13
=9/10×25/30
=9/10×5/6
=3/4
1+3又1/6+5又1/12+7又1/20+9又1/30+11又1/42
=1+3+1/6+5+1/12+7+1/20+9+1/30+11+1/42
=(1+3+5+7+9+11)+(1/6+1/12+1/20+1/30+1/42)
=12*3+[(1/2-1/3)+(1/3-1/4)+(1/4-1/5)+(1/5-1/6)+(1/6-1/7)]
=36+(1/2-1/7)
=36+(7/14-2/14)
=36+5/14
=36又5/14

8/9×[3/4÷(7/16-1/4)] 3/7 × 49/9 - 4/3 2.8/9 × 15/36 + 1/27 3.12×3/7 × 49/9 - 4/3 8/9 × 15/36 + 1/27 12× 5/6 – 2/9 ×3 8× 5/4 + 1/4 6÷ 3/8 – 3/8 ÷6 4/7 × 5/9 + 3/7 × 5/9 5/2 -( 3/2 + 4/5 ) 7/8 + ( 1/8 + 1/9 ) 9 × 5/6 + 5/6 3/4 × 8/9 - 1/3 7 × 5/4 计算-8+[-1/7-(-1/6-0.25×2/3)÷7/3]-(8+9) 2/7÷1/7—1/5×1/3=?(3/4+3/7-1/2)÷1/28=?51×8/25-8/2/7÷1/7—1/5×1/3=?(3/4+3/7-1/2)÷1/28=?51×8/25-8/25=?8/3÷4/9-7/6-5/6=? 9÷(9÷8)÷(8÷7)÷(7÷6)÷(6÷5)÷(5÷4)÷(4÷3)的简便算法 (8/9+1又3/7+6/11)÷(3/11+5/7+4/9)简算 要简算,4/5÷8-4/15×1/8 3÷6/7÷7/9要简算,4/5÷8-4/15×1/8 3÷6/7÷7/9 (-7/9+5/6-3/4)÷1/36-8÷(-3)的2次方等于写出算式 写得数.8/9÷4 1÷2/3 2/5÷3 14÷7/15 5/2÷0.4 5/8÷3/8 3/8÷9/16 6/7÷14/9 12×3/8÷3/4 (1/4+2/9)×72 7/15+8/15×15 3-2/3÷4/5-1/6 (1/3+1/2)÷(1-3/8) (1+2+3+4+5+6+7+8+9+10)×250×111÷1000 (1×2×3×4×5×6×7×8×9×10×11)÷(1+2+3+4+5+6+7+8+9+10+11) 等于多少? 7/25÷8/5+3/25×7/8简便计算 (1/36÷1/4+1/9)÷5/6简便计算 (1)13分之6÷26分之7×8分之7 (2)30-8分之3÷9分之8(3)3.2÷7分之4+2(4)8分之3×7分之4+8分之3×7分之3(5)19分之6×7分之6+19分之6÷7 1÷(2÷3)÷(3÷4)÷(5÷6)÷(6÷7)÷(7÷8)÷(8÷9) 快点,3分钟以内! 8/9÷7/4÷1/3求简算 3/8×1/6×3/10,65×(2-5/13),5/6×3/10÷5/16 ,28×5/14-6 ,(1/3-1/8)÷1/6,5/8÷(4/9×3/8)(1/4-1/4)÷5/18 ,(7/27-1/9)×9,5/16÷(15/16÷5/8),42×(8-6/7),4÷7/20×7/10 ,7/15÷(2/3×41/5),13÷(1+1/3) ,5/13÷7/13×35 ,6/3 8/9÷[(1/2+1/6)÷3/4] 1÷[(7/12-50%)×3] (1/2-1/3)×3/8÷25%