(3 2/7+4 5/21)×51/79+9/16÷18/224

Question

(3 2/7+4 5/21)×51/79+9/16÷18/224

Answer 1

(3 2/7+4 5/21)×51/79+9/16÷18/224=(3 6/21+4 5/21)×51/79+9/16*224/18=
=7 11/21×51/79+1/16*224/2=158/21×51/79+1/16*112/1=2/21×51/1+7=
= 2/7*17+7=34/7+7=4 6/7+7=11 6/7