Tìm x biết: x + 1/3 = 3/4; x + 1/5 = 3/7; x + 2/3 = 7/12
----- Nội dung dịch tự động từ ảnh -----
Bài 29: Tìm x biết:
1) \( x + \frac{1}{3} = \frac{3}{4} \)
2) \( x + \frac{1}{5} = \frac{3}{7} \)
3) \( x + \frac{2}{3} = \frac{7}{12} \)
4) \( x + \frac{3}{5} = \frac{4}{15} \)
5) \( x + \frac{3}{4} = \frac{4}{5} \)
6) \( x + \frac{2}{3} = \frac{5}{6} \)
7) \( x + \frac{1}{12} = -\frac{3}{8} \)
8) \( x + \frac{1}{12} = -\frac{11}{12} \)
9) \( x + \frac{2}{7} = \frac{2}{9} \)
10) \( \frac{1}{6} + x = \frac{5}{12} \)
11) \( \frac{2}{3} + x = \frac{4}{7} \)
12) \( \frac{1}{2} + x = \frac{1}{4} \)
13) \( \frac{5}{9} - \frac{x}{9} = \frac{4}{9} \)
14) \( \frac{5}{9} + x = \frac{4}{9} \)
15) \( -\frac{3}{7} + x = \frac{1}{3} \)
Bài 29: Tìm x biết:
1) \( x + \frac{1}{3} = \frac{3}{4} \)
2) \( x + \frac{1}{5} = \frac{3}{7} \)
3) \( x + \frac{2}{3} = \frac{7}{12} \)
4) \( x + \frac{3}{5} = \frac{4}{15} \)
5) \( x + \frac{3}{4} = \frac{4}{5} \)
6) \( x + \frac{2}{3} = \frac{5}{6} \)
7) \( x + \frac{1}{12} = -\frac{3}{8} \)
8) \( x + \frac{1}{12} = -\frac{11}{12} \)
9) \( x + \frac{2}{7} = \frac{2}{9} \)
10) \( \frac{1}{6} + x = \frac{5}{12} \)
11) \( \frac{2}{3} + x = \frac{4}{7} \)
12) \( \frac{1}{2} + x = \frac{1}{4} \)
13) \( \frac{5}{9} - \frac{x}{9} = \frac{4}{9} \)
14) \( \frac{5}{9} + x = \frac{4}{9} \)
15) \( -\frac{3}{7} + x = \frac{1}{3} \)