(2 5/14×4 2/3-5 1/4+12:2 1/4):(9 7/18-2 5/9)

Question

(2 5/14×4 2/3-5 1/4+12:2 1/4):(9 7/18-2 5/9)

Answer 1

(33/14*14/3-21/4+12:9/4):(169/18-23/9)=(11-21/4+16/3):(169/18-46/16)=(132/12-63/12+64/12):(123/18)=133/12 :123/18=133/12 * 18/123=133/2*3/123=399/246=1 153/246