1*325698756/3388+99999999999999999999999999999999999999999999999999999999999999969999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999969999999999999999999999999999999999999
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Kết quả rút gọn lần lượt là: 1 2 ; − 3 8 ; 1 2 ; 2 3 ; 3 2 ; − 15 17
\(\frac{3388}{8228}\),\(ƯCLN\left[3388,8228\right]=484\)
\(\Rightarrow\frac{3388}{8228}=\frac{3388:484}{8228:484}=\frac{7}{17}\)
\(\frac{6930}{9450},ƯCLN\left[6930,8228\right]=630\)
\(\Rightarrow\frac{6930}{9450}=\frac{6930:630}{9450:630}=\frac{11}{15}\)
Bài giải
Tổng của các số tăng thêm là :
1 + 2 + 3 + ... + 7 = 28
Tổng của 7 số lúc đầu là :
49 x 7 = 343
Trung bình của các số mới là :
(28 + 343) : 7 = 53
Đáp số : 53
đúng thì ủng hộ nha
450 : 27 = 16.66666666666667
540 : 45 = 12
472 : 56 = 8.428571428571429
8192 : 64 = 128
4725 : 15 = 315
8058 : 34 = 237
5672 : 42 = 135.047619047619
1820 : 35 = 52
3388 : 49 = 69.14285714285714
3960 : 52 = 76.15384615384615
1800 : 75 = 24
450 : 27 = 16 dư 18
540 : 45 = 12
472 : 56 = 8 dư 24
8192 : 64 = 128
4725 : 15 = 315
8058 : 34 = 237
5672 : 42 = 135 dư 2
1820 : 35 = 52
3388 : 49 = 69 dư 7
3960 : 52 = 76 dư 8
1800 : 75 = 24
=999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999
và báo cáo