Question

数学的简便计算，求算式！！！！！

（999×1/6+333×1/2-666×1/9）
÷7/9-333

Answer 1

( 999 X 1/6 + 333 X 1/2 - 666 X 1/9 ) / 7/9 - 333
= 333 X ( 3/6 + 1/2 - 2/9 ) X 9/7 - 333
= 333 X ( 1 - 2/9 ) X 9/7 - 333
= 333 X ( 7/9 X 9/7 - 1 )
= 333 X ( 1 - 1 )
= 0

Answer 2

（999×1/6+333×1/2-666×1/9）÷7/9-333
=333*（3*1/6+1/2-2*1/9）*9/7-333
=333*（1-2/9）*9/7-333
=333*7/9*9/7-333
=333-333
=0

Answer 3

（999×1/6+333×1/2-666×1/9）÷7/9-333
=333*（3*1/6+1/2-2*1/9)*9/7-333
=333(1/2+1/2-2/9)*7/9-1
=333*7/9*9/7-333
=333-333
=0
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