(2/7+4/3-10%)×21 3/4+( 20%+1/3)×4.5(2/7+4/3-10%)×213/4+( 20%+1/3)×4.5
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(2/7+4/3-10%)×213/4+(20%+1/3)×4.5(2/7+4/3-10%)×213/4+(20%+1/3)×4.5(2/7+4/3-10%)×213/4+(20%+1/3)×4.5(
(2/7+4/3-10%)×21 3/4+( 20%+1/3)×4.5(2/7+4/3-10%)×213/4+( 20%+1/3)×4.5
(2/7+4/3-10%)×21 3/4+( 20%+1/3)×4.5
(2/7+4/3-10%)×21
3/4+( 20%+1/3)×4.5
(2/7+4/3-10%)×21 3/4+( 20%+1/3)×4.5(2/7+4/3-10%)×213/4+( 20%+1/3)×4.5
(1*3*5+2*6*10+7*21*35)/(3*4*5+6*8*10+21*28*35)
7/15*(4/21+3/14)/4/15 9/10/[1/2*(6/5-3/10)]
简算.2/3+4-(2/3+5/7) (15/32×10/21+17/32×10/21)÷6/7
help!要简算的.(1)1*2*3+2*4*6+7*14*21 (2)1*3*5+2*10+7*21*35
(2/7+4/3-10%)×21 3/4+( 20%+1/3)×4.5(2/7+4/3-10%)×213/4+( 20%+1/3)×4.5
(4/3-5/3)÷10/7 (3/2+9/2)÷21/20 1-14/5÷7/5(4/3-5/3)÷10/7 (3/2+9/2)÷21/20 1-14/5÷7/5 4/1÷(3/2+2/1)×5/4
1*2*3+2*4*6+7*14*21/1*3*5+2*6*10+7*21*35
1*2*3+2*4*6+7*14*21/1*3*5+2*6*10+7*21*35简算
1*2*3+2*4*6+7*14*21/1*3*5+2*6*10+7*21*35
(1×3×5+2×6×10+7×21×35)÷(3×4×5+6×8×10+21×28×35°)怎么简算
百分数数学题(能简算要简算)①(3/7+2/3-10%)×21 3/5×53%+60%×0.47 ③3/4-(20%+1/3)×4.5
1*3*4+2*6*12/2*5*7+4*10*21
4/7+9/14-10/21+3/7=
4道分数混合运算,(1)3/4×4/9÷(4/5-3/10)(2)1/4+3×7/6(3)3/7×4/5+4/7×2/5(4)5/7÷3-2/21
15.9/7 - ( 2/7 – 10/21 ) 5/9 × 18 – 14 × 2/7 4/5 × 25/16 + 2/315.9/7 - ( 2/7 – 10/21 ) 5/9 × 18 – 14 × 2/7 4/5 × 25/16 + 2/3 × 3/4 14 × 8/7 – 5/6 × 12/15 17/32 – 3/4 × 9/24
(1×2×3+2×4×6+4×8×12+7×14×21)÷(1×3×5+2×6×10+4×12×20+7×21×35)怎么简算
约减1*2*3+2*4*6+4*8*12+7*14*21/1*3*5+2*6*10+4*12*20+7*21*35
1*3*5+2*6*10+7*21*35分之1*2*6+2*4*6+7*14*21