1) 23/9 + 25/6 = 46/18 + 75/18 = 121/18 = 6 13/18
2) 3/4 + 26/10 = 30/40 + 104/40 = 134/40 = 3 14/40 = 3 7/20
3) 27/8 + 57/10 = 135/40 + 228/40 = 363/40 = 9 3/40
4) 137/16 - 14/1 = 137/16 - 224/16 = - 87/16 = - 5 7/16
5) 11/4 - 425/100 = 275/100 - 425/100 = -150/100 = - 1,5
2) 3/4 + 26/10 = 30/40 + 104/40 = 134/40 = 3 14/40 = 3 7/20
3) 27/8 + 57/10 = 135/40 + 228/40 = 363/40 = 9 3/40
4) 137/16 - 14/1 = 137/16 - 224/16 = - 87/16 = - 5 7/16
5) 11/4 - 425/100 = 275/100 - 425/100 = -150/100 = - 1,5
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