Question

найди значения выражение:1)5/8+5/6+7/12; 2) 1/5+3/8-2/9; 3)1/4+2/9-5/36. пожл помогите

Answer 1

1)
$\frac{5}{8} + \frac{5}{6} + \frac{7}{12} = \frac{15 + 20 + 14}{24} = \frac{49}{24} = 2 \frac{1}{24}$
2)
$\frac{1}{5} + \frac{3}{8} - \frac{2}{9} = \frac{72 + 135 - 80}{360} = \frac{127}{360}$
3)
$\frac{1}{4} + \frac{2}{9} - \frac{5}{36} = \frac{9 + 8 - 5}{36} = \frac{12}{36} = \frac{1}{3}$

Answer 2

5/8 + 5/6 + 7/12 =  30/48 + 40/48 + 28/48 = 98/48 =2 2/48 = 2 1/24

1/5 + 3/8 - 2/9 = 72/360 + 135/360 - 80/360 = 127/360

1/4 + 2/9 -5/36 = 9/36 + 8/36 - 5/36 = 12/36 = 1/3