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minhngoc22bestran
2 năm trước
Mấy bạn giúp mik mấy câu này zới ạ ♥️ Câu 1: Quy đồng mẫu số hãi phân số 5/9 và 4/9 ta có MSC nhỏ nhất là : A .27. B.18. C. 12. D.36 Câu 2 : Tính A)1/5 + 4/11 + 5/5 + 7/11 = = = Câu 3: Quy đồng mẫu số 2 phân số 5/9 và 7/36 ta có mẫu số chung nhỏ nhất là : A.324. B. 72. C . 108 D. 36 Các bạn giúp mik với
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