Số lẻ bé nhất có 3 chữ số là 101.

 Số lẻ liền sau của số lẻ bé nhất có 2 chữ số là 13.

 Mẫu số của phân số là :

  (101+13):2=57

Tử số của phân số là :

    57-13=44

 Vậy P/S cần tìm là 44/57

dễ mà, hiệu là 13. Tổng là 101 rồi ta làm như bài toán tổng hiệu

Mẫu số là:(101+13):2=57

Tử số là:101-57=44

Phân số đó là:44/57

mình cảm ơn bạn nhé

1/3=1/12+1/4

Các phân số thỏa mãn:1/9,2/8,3/7,4/6

1 + 9 = 10 

2 + 8 = 10 

3 + 7 = 10 

4 + 6 = 10 

Có thể lập tất cả: 1/9 ; 2/8 ; 3/7 ; 4/6 

mik không biết xin lỗi nhưng tặng bạn

1: 3/8,2/12,1/24,4/6

     Vậy có 10 phân số

2:tử số là:

      (17+5):2=11

   Mẫu số là:

       11-5=6

Phân số đó là:11/6

kết quả là 11/6 nhé

7/8=1/2+1/4+1/8

\(\frac{7}{8}=\frac{1}{8}+\frac{2}{8}+\frac{4}{8}=\frac{1}{8}+\frac{1}{4}\)\(+\frac{1}{2}\)

gọi tử số là a ; mẫu số là b ( b khác 0) 
vì tích tử số là mẫu số = 2016 nên ta có : a.b = 2016 
vì tổng tử số và mẫu số bằng 2016 nên ta có a+b = 2016 

13/35=1/5+1/7+1/35           17/63=1/7+1/9+1/63

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mạng tui 999+ rùi đừng hỏi nữa tui ko bít làm nha 

Tử số là:

(30-6):2=12

Mẫu số là:

30-12=18

Vậy phân số là:12/18

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