Вычеслите 3целых 3/7:1 5/11-26/49×21 1/52

Question

Вычеслите 3целых 3/7:1 5/11-26/49×21 1/52

Comments

= -8 39/49

Answer 1

1)3.3/7:1.5/11=24/7x11/16=3/7x11/2=33/14=2.5/14
2)26/49x21.1/52=26/49x1093/52=1/49x1093/2=1093/98
3)33/14-1093/98=231/98-1093/98=-862/98=-8.39/49

Comments

3) 33/14-1093/98=231/98-1093/98= -862/98= -431/49 = - 8 39/49