ГДЗ Математика 6 клас Істер — Вправа 441

1) $\frac{6}{25} : \frac{12}{55} = \frac{6}{25} \cdot \frac{55}{12} = \frac{1 \cdot 11}{5 \cdot 2} = \frac{11}{10} = 1\frac{1}{10};$

2) $\frac{5}{6} : \frac{55}{72} = \frac{5}{6} \cdot \frac{72}{55} = \frac{1 \cdot 12}{1 \cdot 11} = \frac{12}{11} = 1\frac{1}{11};$

3) $\frac{10}{51} : \frac{15}{68} = \frac{10}{51} \cdot \frac{68}{15} = \frac{2 \cdot 4}{3 \cdot 3} = \frac{8}{9};$

4) $\frac{48}{49} : \frac{32}{77} = \frac{48}{49} \cdot \frac{77}{32} = \frac{3 \cdot 11}{7 \cdot 2} = \frac{33}{14} = 2\frac{5}{14}.$