Question

помогите матем пж срочно​

Answer 1

1)

$\frac{5}{8} + \frac{5}{6} + \frac{7}{12} = \frac{15 + 20 + 14}{24} = \frac{48}{24} = 2$

2)

$\frac{1}{5} + \frac{3}{8} - \frac{2}{9} = \frac{72 + 135 - 80}{360} = \frac{127}{360}$

4)

$\frac{3}{4} + \frac{4}{5} + \frac{1}{20} = \frac{15 + 16 + 1}{20} = \frac{32}{20} = 1.6$

5)

$\frac{3}{4} + \frac{5}{12} - \frac{1}{9} = \frac{27 + 15 - 4}{36} = \frac{38}{36} = \frac{19}{18} = 1 \frac{1}{18}$