Question

3/8*8/13*13/18 и 4/11*22/39*13/16 помогите плиз

Answer 1

3/8*8/13*13/18 =3/18=1/6

4/11*22/39*13/16 = (4*22*13)/(11*39*16)=
(1*2*1)/(1*3*4)=2/12=1/6

Answer 2

$displaystyle a).. frac{3}{8}* frac{8}{13}* frac{13}{18}= frac{3*8*13}{8*13*18}= frac{3}{18}= frac{1}{6} \ \ \ b).. frac{4}{11}* frac{22}{39}* frac{13}{16}= frac{4*22*13}{11*39*16}= frac{1*2*1}{1*3*4}= frac{1}{6}$