Преобразуем смешанные числа в неправильные дроби:
- $$1\frac{1}{4} = \frac{1 \times 4 + 1}{4} = \frac{5}{4}$$
- $$6\frac{9}{15} = \frac{6 \times 15 + 9}{15} = \frac{90 + 9}{15} = \frac{99}{15}$$
- $$9\frac{1}{19} = \frac{9 \times 19 + 1}{19} = \frac{171 + 1}{19} = \frac{172}{19}$$
- $$8\frac{1}{100} = \frac{8 \times 100 + 1}{100} = \frac{800 + 1}{100} = \frac{801}{100}$$
- $$7\frac{15}{10000} = \frac{7 \times 10000 + 15}{10000} = \frac{70000 + 15}{10000} = \frac{70015}{10000}$$
Ответ: $$1\frac{1}{4} = \frac{5}{4}$$, $$6\frac{9}{15} = \frac{99}{15}$$, $$9\frac{1}{19} = \frac{172}{19}$$, $$8\frac{1}{100} = \frac{801}{100}$$, $$7\frac{15}{10000} = \frac{70015}{10000}$$