
8/9乘括号,3/4加括号,7/16减25%简便计算?
1个回答
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8/9×【3/4+(7/16-25%)】
=8/9×(3/4-1/4+7/16)
=8/9×(1/2+7/16)
=8/9×15/16
=8/16×15/9
=1/2×5/3
=5/6
=6分之5
=8/9×(3/4-1/4+7/16)
=8/9×(1/2+7/16)
=8/9×15/16
=8/16×15/9
=1/2×5/3
=5/6
=6分之5
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