1)-7,65+(-5 31/40+4,76) = - 7 целых 133/200
1) -5 31/40 + 4 76/100 = - 5 155/200 + 4 152/200 = -3/200
2) -7 65/100 + (-3/200) = -7 130/200 - 3/200 = - 7 133/200
2)25,1-(-9 73/80+0,0850) = 34 371/400
1) -9 73/80 + 850/10000 = -9 73/80 + 17/200 = -9 365/400 + 34/400 = -9 331/400
2) 25,1 -(-9 331/400) = 25,1 + 9 331/400=( -(- ОБРАЗУЕТ ПЛЮС)=25 1/10 + 9 331/400 = 25 40/400 + 9 331/400 = 34 371/400
1)-7,65+(-5 31/40+4,76) = - 7 целых 133/200
1) -5 31/40 + 4 76/100 = - 5 155/200 + 4 152/200 = -3/200
2) -7 65/100 + (-3/200) = -7 130/200 - 3/200 = - 7 133/200
2)25,1-(-9 73/80+0,0850) = 34 371/400
1) -9 73/80 + 850/10000 = -9 73/80 + 17/200 = -9 365/400 + 34/400 = -9 331/400
2) 25,1 -(-9 331/400) = 25,1 + 9 331/400=( -(- ОБРАЗУЕТ ПЛЮС)=25 1/10 + 9 331/400 = 25 40/400 + 9 331/400 = 34 371/400