1) 32.49657*1/2*2=32.49657*1= 32.4965
2) 1/4*78.9876=78.9876:4=19.7469
10 4/5+9 11/15=19/5+146/15=57/15+146/15=203/15
203/15-8 1/30=203/15-241/30=406/30-241/30=165/30=33/6=5 3/6=5 1/3
1/7 .2/7. 3/7 .4/7 .5/7 .6/7 .7/7.
1 хз
2.47/4
3.38/5
4.43/5
5.113/12
6.198/19