1) 0,8 - 5/7 = 8/10 - 5/7 = 56/70 - 50/70 = 6/70 = 3/352) 0,5 + 1/3 = 5/10 + 3/10 = 8/10 = 4/53) 0,36 + 8/15 = 36/100 + 8/15 = 36/100 + 32/100 = 68/100 = 17/25
1) 0,8 - 5/7 = 8/10 - 5/7 = 56/70 - 50/70 = 6/70 = 3/35
2) 0,5 + 1/3 = 5/10 + 3/10 = 8/10 = 4/5
3) 0,36 + 8/15 = 36/100 + 8/15 = 36/100 + 32/100 = 68/100 = 17/25