Question

1)calcule e simplifique se possível as operações com denominadores iguais:

a)3/8+4/8

b)14/20_9/20

c)9/10_4/10+2/10

d)20/36_11/36+3/36

me ajudem por favor!!!! e pra entregar hj ;( <3♥️♥️​​

Answer 1

Resposta:

$a) \frac{7}{8}\\\\b) \frac{1}{4}\\\\c) \frac{7}{10}\\\\d) \frac{1}{3}$

Explicação passo a passo:

$a) \frac{3}{8} + \frac{4}{8} = \frac{7}{8} \\\\b) \frac{14}{20} - \frac{9}{20} = \frac{5}{20} = \frac{1}{4} \\\\c) \frac{9}{10} - \frac{4}{10} + \frac{2}{10} = \frac{5}{10} + \frac{2}{10} = \frac{7}{10} \\\\d) \frac{20}{36} - \frac{11}{36} + \frac{3}{36} = \frac{9}{36} + \frac{3}{36} = \frac{12}{36} = \frac{1}{3}$

Answer 2

a) = 7/8

b) = 1/4

c) = 7/10

d) = 1/3

ta ai as respostas bjs <3