Question

Khong tinh ket qua hay dien dau >, <, = thich hop vao o trong co giai thich

a) 7/9+11/13+24/25 ... 3

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b)9/8+13/12+15/13+5/4 ... 4

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Answer 1

giup toi voi

Answer 2

a) Ta thấy: 7/9<1, 11/13<1, 24/25<1 nên 7/9+11/13+24/25<3

b) Ta thấy: 9/8>1, 13/12>1, 15/13>1, 5/4>1 nên 9/8+13/12+15/13+5/4>4