Question

Упростите выражение (746). 6 класс

Answer 1

$\displaystyle 1)\frac{5}{8}x-\frac{1}{4}x-\frac{1}{12}x+\frac{1}{6}x=\frac{5x}{8}-\frac{x}{4}-\frac{x}{12}+\frac{x}{6}=\frac{3*5x}{3*8}-\frac{6x}{6*4}-\frac{2x}{2*12}+\frac{4x}{4*6}=\\ \\ \frac{15x}{24}-\frac{6x}{24}-\frac{2x}{24}+\frac{4x}{24}=\frac{15x-6x-2x+4x}{24} =\frac{11x}{24}=\frac{11}{24}x\\\\ 2) \frac{5}{7}y+\frac{1}{4}y+\frac{3}{14}y+1\frac{3}{4}=\frac{33}{28}y+1\frac{3}{4}=\frac{33}{28}y+\frac{7}{4}$