15 \frac{5}{5} = \frac{77}{5} 13 \frac{1}{2} 5 \frac{2}{3} 7 \frac{4}{6} 15 \frac{4}{9} 19 \frac{3}{5} 21 \frac{4}{7} 45 \frac{3}{5} 11 \frac{1}{5} 16 \frac{2}{3} 23 \frac{5}{2} 37 \frac{1}{2} 25 \frac{3}{4} 38 \frac{3}{4} 15 \frac{5}{7} 10 \frac{9}{11} 12 \frac{4}{10}

Преобразуем смешанные числа в неправильные дроби.

1. $$15 \frac{5}{5} = \frac{15 \cdot 5 + 5}{5} = \frac{75 + 5}{5} = \frac{80}{5}$$
2. $$13 \frac{1}{2} = \frac{13 \cdot 2 + 1}{2} = \frac{26 + 1}{2} = \frac{27}{2}$$
3. $$5 \frac{2}{3} = \frac{5 \cdot 3 + 2}{3} = \frac{15 + 2}{3} = \frac{17}{3}$$
4. $$7 \frac{4}{6} = \frac{7 \cdot 6 + 4}{6} = \frac{42 + 4}{6} = \frac{46}{6} = \frac{23}{3}$$
5. $$15 \frac{4}{9} = \frac{15 \cdot 9 + 4}{9} = \frac{135 + 4}{9} = \frac{139}{9}$$
6. $$19 \frac{3}{5} = \frac{19 \cdot 5 + 3}{5} = \frac{95 + 3}{5} = \frac{98}{5}$$
7. $$21 \frac{4}{7} = \frac{21 \cdot 7 + 4}{7} = \frac{147 + 4}{7} = \frac{151}{7}$$
8. $$45 \frac{3}{5} = \frac{45 \cdot 5 + 3}{5} = \frac{225 + 3}{5} = \frac{228}{5}$$
9. $$11 \frac{1}{5} = \frac{11 \cdot 5 + 1}{5} = \frac{55 + 1}{5} = \frac{56}{5}$$
10. $$16 \frac{2}{3} = \frac{16 \cdot 3 + 2}{3} = \frac{48 + 2}{3} = \frac{50}{3}$$
11. $$23 \frac{5}{2} = \frac{23 \cdot 2 + 5}{2} = \frac{46 + 5}{2} = \frac{51}{2}$$
12. $$37 \frac{1}{2} = \frac{37 \cdot 2 + 1}{2} = \frac{74 + 1}{2} = \frac{75}{2}$$
13. $$25 \frac{3}{4} = \frac{25 \cdot 4 + 3}{4} = \frac{100 + 3}{4} = \frac{103}{4}$$
14. $$38 \frac{3}{4} = \frac{38 \cdot 4 + 3}{4} = \frac{152 + 3}{4} = \frac{155}{4}$$
15. $$15 \frac{5}{7} = \frac{15 \cdot 7 + 5}{7} = \frac{105 + 5}{7} = \frac{110}{7}$$
16. $$10 \frac{9}{11} = \frac{10 \cdot 11 + 9}{11} = \frac{110 + 9}{11} = \frac{119}{11}$$
17. $$12 \frac{4}{10} = \frac{12 \cdot 10 + 4}{10} = \frac{120 + 4}{10} = \frac{124}{10} = \frac{62}{5}$$

Ответ:

1. $$\frac{80}{5}$$
2. $$\frac{27}{2}$$
3. $$\frac{17}{3}$$
4. $$\frac{23}{3}$$
5. $$\frac{139}{9}$$
6. $$\frac{98}{5}$$
7. $$\frac{151}{7}$$
8. $$\frac{228}{5}$$
9. $$\frac{56}{5}$$
10. $$\frac{50}{3}$$
11. $$\frac{51}{2}$$
12. $$\frac{75}{2}$$
13. $$\frac{103}{4}$$
14. $$\frac{155}{4}$$
15. $$\frac{110}{7}$$
16. $$\frac{119}{11}$$
17. $$\frac{62}{5}$$