Выполните сложение смешанных дробей. 3/4+1 1/4 3 2/3 + 1 2/3 1/4+3 1/6 2 4/9 + 1/6 4 3/5 + 10 1/4 2 3/4 + 1 2/3 8 3/5 + 1 9/10 7/20 + 8 3/4 3 4/5 + 1 1/3 12 5/6 + 4/15 нужно!

3/4+1 1/4= 1 4/4 = 2
3 2/3 + 1 2/3 = 4 3/3= 5
1/4 + 3 1/6 = 3 (4+6)/24 = 3 10/24= 3 5/12
2 4/9+ 1/6 = 2 (8+3)/18 = 2 11/18
4 3/5+10 1/4 = 14 (12+5)/20 = 14 17/20
2 3/4 + 1 2/3 = 3 (9+8)/12 = 3 17/12 = 4 5/12
8 3/5+ 1 9/10 = 9 (6+9)/10 = 9 15/10 = 10 5/10 = 10 1/2
7/20 + 8 3/4 = 8 (7+15)/20 = 8 22/20 = 9 2/20 = 9 1/10
3 4/5 + 1 1/3 = 4 (12+5)/15 = 4 17/15 = 5 2/15
12 5/6+4/15 = 12 (25+8)/30 = 12 33/30 = 13 3/30 = 13 1/10