Надо ! (1/4+3/4х): 0,45=25/36 и 22×(17/26х-3/4)=5целых1/13

1/4+3/4х=25/36×0,45=5/16
1/4+3/4х=5/16
3/4х=5/16-1/4=1/16
3/4х=1/16
х=1/16÷3/4=1/12
х=1/12

22*(17/26х-3/4)=5 1/13
 17/26х-3/4=66/13*1/22
17/26х=3/13+3/4
17/26х=12/52+39/52
 Х=51/52*26/17
 Х=3/2
 Х=1 1/2