Question

calcule as expressões 11/4+1/8+3/12 b) 11/3+1/5-3/7+1/14

Answer 1

a)

11/4 + 1/8 + 3/12

11/4 + 1/8 + 1/4

22/8 + 1/8 + 2/8 = 25/8

b) 11/3 + 1/5 - 3/7 + 1/14

mmc = 210

770/210 + 42/210 - 90/210 + 15/210

= (770 + 42 + 15 - 90)/210 = (827 - 90)/210 = 737/210

Explicação passo-a-passo:

Answer 2

$\frac{11}{1} + \frac{1}{8} + \frac{3}{12} = \\ \frac{11}{4} + \frac{1}{8} + \frac{1}{4} = \\ \frac{22 + 1 + 2}{8} = \\ \frac{25}{8} \\ \\ \\ \\ \frac{11}{3} + \frac{1}{5} - \frac{3}{7} + \frac{1}{14} = \\ 770 + 42 - 90 + 15 = \\ \frac{737}{210}$