ГДЗ Математика 5 клас Істер — Вправа 1660

1) $3\frac{1}{2} = \frac{3 \cdot 2 + 1}{2} = \frac{7}{2};$

2) $5\frac{3}{4} = \frac{5 \cdot 4 + 3}{4} = \frac{23}{4};$

3) $2\frac{6}{7} = \frac{2 \cdot 7 + 6}{7} = \frac{20}{7};$

4) $12\frac{3}{8} = \frac{12 \cdot 8 + 3}{8} = \frac{96 + 3}{8} = \frac{99}{8};$

5) $7\frac{113}{200} = \frac{7 \cdot 200 + 113}{200} = \frac{1400 + 113}{200} = \frac{1513}{200}.$