ГДЗ Математика 6 клас Істер — Вправа 1303

1) $2,7x - 1\frac{1}{2}x + 3\frac{1}{3}x = (2,7 - 1,5 + 3\frac{1}{3})x = (1\frac{1}{5} + 3\frac{1}{3})x = 4\frac{8}{15}x;$

2) $-3\frac{1}{3}x + 5\frac{1}{6}y - 2\frac{7}{8}x - 2\frac{7}{12}y = -6\frac{5}{24}x + 2\frac{7}{12}y;$

3) $1\frac{4}{7}m - 2\frac{3}{14}m + \frac{17}{42}m = (1\frac{24}{42} - 2\frac{9}{42} + \frac{17}{42})m = -\frac{5}{21}m;$

4) $-2\frac{5}{9}p + 1\frac{4}{9}b + 4\frac{7}{18}p - 3\frac{11}{27}b = 1\frac{5}{6}p - 1\frac{26}{27}b.$