Question

Вычислите: 1) (2/3+9/11)*22 2)3/5:(9/10-3/5*8/9)

Answer 1

(2/3+9/11)*22=(22/33+27/33)*22=49/33*22=98/3=32 2/3
3/5:(9/10-3/5*8/9)=3/5:(9/10-8/15)=3/5:11/30 = 18/11=1 7/11