Proszę o pomoc : oblicz 2 5/6 + 1 3/7 =
                                       2/9 + 5/6 =
                             

2 5/6 + 1 3/7 =  2 35/42 + 1 18/42 = 3 53/42 = 4 11/42
2/9 + 5/6 = 4/18 + 15/18 = 19/18 = 1 1/18
1 7/10 + 2 3/4 = 1 14/20 +  2 15/20 = 3 29/20 = 4 9/20
Miłego dnia :)

2*5/6+1*3/7= 2/1*5/6+1*3/7= 10/6 +10/7 = 70/42 +60/42= 130/42 = 3 +4/42=3+2/21
2/9+ 5/6= 4/18 +15 /18 = 1+1 /18
1*7/10 + 2* 3/4 = 7/10 +6/4 = 28/40 + 60/40 = 88/40 = 2 +8/40 =2+1/5
 Proszę