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Marcela7720go
Respondido

resolva
a)-2/5-1/4

b)2/3+1/2

c)-1/8+1/5

d)1/5+3/5​


me ajudem

Resposta :

Julioribeiropaz2007go

Resposta:

a) -13/20

b) 7/6

c) 3/40

d)20/25

EXPLICAÇÃO:

a) -8/20 -5/20 = -13/20

b) 4/6 + 3/6 = 7/6

c) -5/40 +8/40 = +3/40

d 5/25 + 15/25 = 20/25

Resposta:

[tex] \frac{ - 2}{5} - \frac{1}{4} = \frac{ - 13}{20} \\ \\ \frac{2}{3} + \frac{1}{2} = 1\frac{1}{6} \\ \\ \frac{ - 1}{8} + \frac{1}{5} = \frac{3}{40} \\ \\ \frac{1}{5} + \frac{3}{5} = \frac{4}{5} [/tex]

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