Question

6-3/7=?
Распишите полностью
8-2/3=?
7-5/8=?

Answer 1

1. $6 - \frac{3}{7} = \frac{6}{1} - \frac{3}{7} = \frac{6 \times 7}{1 \times 7} - \frac{3}{7} = \frac{42}{7} - \frac{3}{7} = \frac{42 - 3}{ 7 } = \frac{39}{7}$
2. $8 - \frac{2}{3} = \frac{8}{1} - \frac{2}{3} = \frac{8 \times 3}{1 \times 3} - \frac{2}{3} = \frac{24}{3} - \frac{2}{3} = \frac{24 - 2}{3} = \frac{22}{3}$
3. $7 - \frac{5}{8} = \frac{7}{1} - \frac{5}{8} = \frac{7 \times 8}{1 \times 8} - \frac{5}{8} = \frac{56}{8} - \frac{5}{8} = \frac{56 - 5}{8} = \frac{51}{8}$