Question

1) 1 5/18 - 11/12 +23/36 + 1 7/10 + 25 / 2 1/2 * 2 39/50;
2) 49 1/2 / (56 13/21 - 27 5/6 + 3 1/2 - 23 2/7) * (28 - 22 8/33);
3) 1 / 1/7 + 1/2 * 1 29/44 + 50 7/24 +1 31/33 * 2 - 29 1/4;
4) 30 1/9 - 2 7/18 / 1/8 + ( 60 8/15 - 60 1/3 ) * (7 41/44 + 19 9/11) + 17 1/4;
5) 16/49 + 38 17/98 - ( 14 29/48 - 1/2 * 1 6/7 / 1/10 * 1 2/5) / 7/16.