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5/7-3/14
20/63-2/9
11/24-5/12
5/18-1/6
1/4-3/16


Răspuns :


[tex] \frac{5}{7} - \frac{3}{14} = \\ \frac{10}{14} - \frac{3}{14} = \frac{7}{14} = \frac{1}{2} [/tex]
Vezi imaginea STEFANIA1123721