作业帮(5\9×4\7+4\7)÷4\7简算
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(5\9×4\7+4\7)÷4\7简算
(5\9×4\7+4\7)÷4\7简算
(5\9×4\7+4\7)÷4\7简算
=(5/9+1)×4/7÷4/7
=14/9×1
=14/9
(5\9×4\7+4\7)÷4\7
=(5/9)×(4/7)÷(4/7)+(4/7)÷(4/7)
=5/9+1
=14/9