Question

Đã trả lời bởi chuyên gia

Answer 1

$\frac{1010}{1008 \times 8 - 99 \times 4} = \frac{1010}{1008 \times 2 \times 4 - 99 \times 4} = \frac{1010}{2016 \times 4 - 99 \times 4} = \frac{1010}{4 \times (2016 - 99)} = \frac{1010}{4 \times 1917} = \frac{505 \times 2}{2 \times 2 \times 1917} = \frac{505}{3834} \frac{1 \times 2 \times 3 + 2 \times 4 \times 6 + 3 \times 6 \times 9 + 5 \times 10 \times 15}{1 \times 3 \times 6 + 2 \times 6 \times 12 + 3 \times 9 \times 18 + 5 \times 15 \times 30} = \frac{1 \times 2 \times 3 + 2 \times (1 \times 2 \times 3) + 3 \times (1 \times 2 \times 3) + 5 \times (1 \times 2 \times 3)}{1 \times 3 \times 6 + 2 \times (1 \times 3 \times 6) + 3 \times (1 \times 3 \times 6) + 5 \times (1 \times 3 \times 6)} = \frac{(1 \times 2 \times 3) \times (1 + 2 + 3 + 5)}{(1 \times 3 \times 6) \times (1 + 2 + 3 + 5)} = \frac{1 \times 2 \times 3}{1 \times 3 \times 6} = \frac{2}{6} = \frac{1}{3} M ẫ u s ố c h u n g : 3834 \frac{505}{3834}; \frac{1}{3} = \frac{1 \times 1278}{3 \times 1278} = \frac{1278}{3834}$ ..

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Answer 2

$\frac{1010}{1008 \times 8 - 99 \times 4} = \frac{1010}{1008 \times 2 \times 4 - 99 \times 4} = \frac{1010}{2016 \times 4 - 99 \times 4} = \frac{1010}{4 \times (2016 - 99)} = \frac{1010}{4 \times 1917} = \frac{505 \times 2}{2 \times 2 \times 1917} = \frac{505}{3834} \frac{1 \times 2 \times 3 + 2 \times 4 \times 6 + 3 \times 6 \times 9 + 5 \times 10 \times 15}{1 \times 3 \times 6 + 2 \times 6 \times 12 + 3 \times 9 \times 18 + 5 \times 15 \times 30} = \frac{1 \times 2 \times 3 + 2 \times (1 \times 2 \times 3) + 3 \times (1 \times 2 \times 3) + 5 \times (1 \times 2 \times 3)}{1 \times 3 \times 6 + 2 \times (1 \times 3 \times 6) + 3 \times (1 \times 3 \times 6) + 5 \times (1 \times 3 \times 6)} = \frac{(1 \times 2 \times 3) \times (1 + 2 + 3 + 5)}{(1 \times 3 \times 6) \times (1 + 2 + 3 + 5)} = \frac{1 \times 2 \times 3}{1 \times 3 \times 6} = \frac{2}{6} = \frac{1}{3} M ẫ u s ố c h u n g : 3834 \frac{505}{3834}; \frac{1}{3} = \frac{1 \times 1278}{3 \times 1278} = \frac{1278}{3834}$ ..

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