1) 4 15/36-3 14/36=1 1/36;
2) 1 1/36:9 25/100=
37/36:9 1/4=37/36:37/4=37/36*4/37=4/36=1/9;
3) 1/9+5/6=2/18+15/18=17/18;
4) 0,4+1/8=2/5+1/8=16/40+5/40=21/40;
5) 21/40+75/100=21/40+3/4=21/40+30/40=51/40;
6) 51/40*2/3=17/20;
17/18:17/20=17/18*20/17=20/18=10/9=1 1/9
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Answers & Comments
1) 4 15/36-3 14/36=1 1/36;
2) 1 1/36:9 25/100=
37/36:9 1/4=37/36:37/4=37/36*4/37=4/36=1/9;
3) 1/9+5/6=2/18+15/18=17/18;
4) 0,4+1/8=2/5+1/8=16/40+5/40=21/40;
5) 21/40+75/100=21/40+3/4=21/40+30/40=51/40;
6) 51/40*2/3=17/20;
17/18:17/20=17/18*20/17=20/18=10/9=1 1/9