№197
1) 4 13/17+5 4/17 =81/17+89/17=170/17=10
2) 3 8/11+2 6/11=41/11+28/11=69/11=6 3/11
3)1-16/21=21/21-16/21=5/21
4) 5-2 3/8=40/8-19/8=21/8=2 5/8
5)8 4/9-3 7/9=76/9-34/9=42/9=4 6/9 =4 2/3
6) 12 19/44-6 37/44 =547/44-301/44=246/44=5 26/44 =5 13/22
№198
1) х+39/16=83/16
х=83/16-39/16
х=44/16=2 12/16 =2 6/8 =2 3/4
2) 61/14-(х-101/14)=37/14
61/37-37/14=х-101/14
24/14=х-101/14
24/14+101/14=х
х=125/14=8 13/14