1) 5/8 + 5/6 = 30/48 + 40/48 = 70/48 = 1 22/48 = 1 11/24
2) 70 : 70/48 = 70 * 48/70 = 48
3) 3 1/9 - 1/3 = 3 1/9 - 3/9 = 2 10/9 - 3/9 = 2 7/9
4) (3/10)² = 9/100
5) 2 7/9 * 9/100 = 25/9 * 9/100 = 1/4
6) 48 + 1/4 = 48 1/4 = 48,25
ответ: 48,25.
