Question

a,\(\frac{2}{3}-4.\left(\frac{1}{2}+\frac{3}{4}\right)\)

b,\(\left(\frac{-1}{3}+\frac{5}{6}\right).11-7\)

c,\(\left(\frac{-5}{9}\right).\frac{3}{11}+\left(\frac{-13}{18}\right).\frac{3}{11}\)

d,\(\left(\frac{-2}{3}\right).\frac{3}{11}+\left(\frac{-13}{18}\right).\frac{3}{11}\)

giúp mình với làm ơn