Задание:
7 1/10+1 3/10=3 2/7+3/7=5 4/9+3 2/9=7/11+11 2/11=25/7+31/7=31/29+11/29=79/13+97/13=13/9+17/9=21/31+32/31=65/53+95/53=21/10-3/10=45/22-3/22=73/25-13/25=
Решение:
7 (1/10)+1 (3/10)=8 (4/10)=8,43 (2/7)+3/7=3 (5/7) 5 (4/9)+3 (2/9)=8 (6/9)=8 (2/3) 7/11+11 (2/11)=11 (9/11) 25/7+31/7=56/7=831/29+11/29=42/29=1 (20/29) 79/13+97/13=176/13=13 (7/13) 13/9+17/9=30/9=3 (3/9)=3 (1/3) 21/31+32/31=53/31=1 (22/31) 65/53+95/53=160/53=3 (1/53) 21/10-3/10=18/10=1,845/22-3/22=42/22=1 (20/22) 73/25-13/25=60/25=2 (10/25)=2,4
Знаете другой ответ?