Question

Resolva as subtrações de frações positivas e negativas: A) 7/3 - ( - 1/6 )=
B) 1/3 - (-2/9 )= C) -4/9- ( - 2/3)= D) 2/5 - ( +3/10)= E) -1/8- ( 7/8) = F) -2/3 - ( -5/4) = G) 3/5 - (- 1/2) = Me ajudem por favorrrr!!!!!!!

Answer 1

Resposta:

a) $\frac{5}{2}$

b) $\frac{5}{9}$

c) $\frac{2}{9}$

d) $\frac{1}{10}$

e) $-1$

f) $\frac{7}{12}$

g) $\frac{11}{10}$

Explicação passo-a-passo:

a)

$\frac{7}{3}-( -\frac{1}{6}) =\frac{7}{3} + \frac{1}{6} = \frac{5}{2}$

b)

$\frac{1}{3}-( -\frac{2}{9}) =\frac{1}{3} + \frac{2}{9} = \frac{5}{9}$

c)

$-\frac{4}{9} -(-\frac{2}{3} ) = -\frac{4}{9} + \frac{2}{3} = \frac{2}{9}$

d)

$\frac{2}{5} - (+\frac{3}{10}) = \frac{4-3}{10} = \frac{1}{10}$

e)

$-\frac{1}{8} - \frac{7}{8} = \frac{-1-7}{8} = \frac{-8}{8} = -1$

f)

$-\frac{2}{3} - (-\frac{5}{4}) = -\frac{2}{5} + \frac{5}{4} = \frac{7}{12}$

g)

$\frac{3}{5} - (-\frac{1}{2}) = \frac{3}{5} + \frac{1}{2} = \frac{11}{10}$