1. Закончите действия.

1. Закончите действия:

• a) \(6 \frac{2}{7} + 1 = 7 + \frac{2}{7} = 7\frac{2}{7}\)
• б) \(6 \frac{2}{7} - 1 = 5 + \frac{2}{7} = 5\frac{2}{7}\)
• в) \(5 + \frac{1}{3} = 5\frac{1}{3}\)
• г) \(5 \frac{1}{3} - \frac{3}{3} = 4 + \frac{4}{3} - \frac{3}{3} = 4 + \frac{1}{3} = 4\frac{1}{3}\)
• д) \(7 \frac{5}{8} + \frac{3}{8} = 7 + \frac{5+3}{8} = 7 + \frac{8}{8} = 7 + 1 = 8\)
• e) \(5 \frac{3}{10} + 2 \frac{1}{5} = 5 \frac{3}{10} + 2 \frac{2}{10} = 7 + \frac{3+2}{10} = 7 + \frac{5}{10} = 7\frac{5}{10} = 7\frac{1}{2}\)
• ж) \(5 \frac{3}{10} - 2 \frac{1}{5} = 5 \frac{3}{10} - 2 \frac{2}{10} = 3 + \frac{3-2}{10} = 3\frac{1}{10}\)
• з) \(3 \frac{1}{2} - 1 \frac{3}{4} = 3 \frac{2}{4} - 1 \frac{3}{4} = 2 + \frac{4}{4} + \frac{2}{4} - 1 \frac{3}{4} = 2 \frac{6}{4} - 1 \frac{3}{4} = 1 \frac{3}{4}\)