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Hướng dẫn giải bài tập SGK Toán lớp 4 trang 122: So sánh hai phân số khác mẫu số

Thứ ba - 12/12/2017 04:21
Hướng dẫn giải bài tập SGK Toán lớp 4 trang 122: So sánh hai phân số khác mẫu số

BÀI 1. (Hướng dẫn giải bài tập số 1 trang 122/SGK Toán 4)
So sánh hai phân số:

Hướng dẫn giải:

 
 
BÀI 2. (Hướng dẫn giải bài tập số 2 trang 122/SGK Toán 4)
Rút gọn rồi so sánh hai phân số:

Hướng dẫn giải:

 
BÀI 3. (Hướng dẫn giải bài tập số 3 trang 122/SGK Toán 4)
Mai ăn 3/8 cái bánh, Hoa ăn 2/5 cái bánh
Ai ăn nhiều bánh hơn?
Hướng dẫn giải:

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