Question

a.6/7 x (-1/8)+(-3/4)

b.(-7/17) x5/12 + (-7/17) x 7/12 +(-10/17)

c.[(3/5+(-1/4)] : 3/7 + [(-3/4) + 2/5] : 3/7

 

Answer 1

a: \(=\dfrac{-6}{56}+\dfrac{-3}{4}=\dfrac{-6}{56}+\dfrac{-42}{56}=\dfrac{-48}{56}=\dfrac{-6}{7}\)

b: \(=\dfrac{-7}{17}\left(\dfrac{5}{12}+\dfrac{7}{12}\right)-\dfrac{10}{17}=-\dfrac{7}{17}-\dfrac{10}{17}=-1\)

c: \(=\dfrac{7}{3}\left(\dfrac{3}{5}-\dfrac{1}{4}-\dfrac{3}{4}+\dfrac{2}{5}\right)=0\)