4/5x99+4/5简便计算24x(2/3+1/6-3/8) (5/9-1/6)÷(7/8+1/3) 2x5/9+4/9 还有一题:1-2/3x=2/5
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4/5x99+4/5简便计算24x(2/3+1/6-3/8) (5/9-1/6)÷(7/8+1/3) 2x5/9+4/9 还有一题:1-2/3x=2/5
4/5x99+4/5简便计算
24x(2/3+1/6-3/8) (5/9-1/6)÷(7/8+1/3) 2x5/9+4/9
还有一题:1-2/3x=2/5
4/5x99+4/5简便计算24x(2/3+1/6-3/8) (5/9-1/6)÷(7/8+1/3) 2x5/9+4/9 还有一题:1-2/3x=2/5
4/5x99+4/5
=4/5×(99+1)
=4/5×100
=80
24x(2/3+1/6-3/8)
=24×2/3+24×1/6-24×3/8
=16+4-9
=11
(5/9-1/6)÷(7/8+1/3)
=(7/18)÷(29/24)
=7/18×24/29
=28/87
2x5/9+4/9
=10/9+4/9
=14/9
4/5(99+1)
4/5x99+4/5
=(4/5)(99+1)
=(4/5)×100
=80;
24x(2/3+1/6-3/8)
=24×(2/3)+24×(1/6)-24×(3/8)
=2×8+4-3×3
=16+4-9
=11;
(5/9-1/6)÷(7/8+1/3)
=(10/18-3/18)÷(21/24+8/24)
=(7/18)×(24/29)
=28/87;
2x5/9+4/9
=(2/9)×(5+2)
=(2/9)×7
=14/9;
1=4/5×(99+1)=4/5×100=80; 2=24×2/3+24×1/6-24×3/8=16+4-9=11;
3=7/18÷29/24=28/81; 4=10/9+4/9=14/9.
=4/5(99+1)=4/5*100
=80
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