A)4,25 = 4 + 0,25 = 4 + 25/100 = 4 + 1/4 = 4 1/41 19/25 = 1 + 19/25
4 1/4 + 1 + 19/25 = 4 + 1 + 1/4 + 19/25 = 5 1/4 + 19/25 = 5 * 25/25 + 1/4 + 19/25 = 125/25 + 1/4 + 19/25 = 125/25 + 25/100 + 19/25 = 500/100 + 25/100 + 76/100 = 525/100 + 76/100 = 601/100 = 6 1/100
Ответ: 6 1/100
B)7 7/8 = 7 + 7/83,18 = 3 + 0,18 = 3 + 18/100 = 3 + 9/50 = 3 + 9/50
7 + 7/8 - 3 + 9/50 = 7 - 3 + 7/8 + 9/50 = 4 + 7/8 + 9/50 = 4 + 25/50 + 9/50 = 4 + 34/50 = 4 + 17/25 = 4 17/25
Ответ: 4 17/25
B)19,75 = 19 + 0,75 = 19 + 75/100 = 19 + 3/4 = 19 + 75/10019 3/16 = 19 + 3/16
19 + 3/4 - 19 + 3/16 = 19 - 19 + 3/4 + 3/16 = 3/4 + 3/16 = 12/16 + 3/16 = 15/16
Ответ: 15/16
G)3,45 = 3 + 0,45 = 3 + 45/100 = 3 + 9/20 = 3 + 9/202 4/9 = 2 + 4/9
3 + 9/20 + 2 + 4/9 = 3 + 2 + 9/20 + 4/9 = 5 + 9/20 + 4/9 = 5 + 9/20 + 40/90 = 5 + 81/180 + 80/180 = 5 + 161/180 = 5 161/180
Ответ: 5 161/180
A)
4,25 = 4 + 0,25 = 4 + 25/100 = 4 + 1/4 = 4 1/4
1 19/25 = 1 + 19/25
4 1/4 + 1 + 19/25 = 4 + 1 + 1/4 + 19/25 = 5 1/4 + 19/25 = 5 * 25/25 + 1/4 + 19/25 = 125/25 + 1/4 + 19/25 = 125/25 + 25/100 + 19/25 = 500/100 + 25/100 + 76/100 = 525/100 + 76/100 = 601/100 = 6 1/100
Ответ: 6 1/100
B)
7 7/8 = 7 + 7/8
3,18 = 3 + 0,18 = 3 + 18/100 = 3 + 9/50 = 3 + 9/50
7 + 7/8 - 3 + 9/50 = 7 - 3 + 7/8 + 9/50 = 4 + 7/8 + 9/50 = 4 + 25/50 + 9/50 = 4 + 34/50 = 4 + 17/25 = 4 17/25
Ответ: 4 17/25
B)
19,75 = 19 + 0,75 = 19 + 75/100 = 19 + 3/4 = 19 + 75/100
19 3/16 = 19 + 3/16
19 + 3/4 - 19 + 3/16 = 19 - 19 + 3/4 + 3/16 = 3/4 + 3/16 = 12/16 + 3/16 = 15/16
Ответ: 15/16
G)
3,45 = 3 + 0,45 = 3 + 45/100 = 3 + 9/20 = 3 + 9/20
2 4/9 = 2 + 4/9
3 + 9/20 + 2 + 4/9 = 3 + 2 + 9/20 + 4/9 = 5 + 9/20 + 4/9 = 5 + 9/20 + 40/90 = 5 + 81/180 + 80/180 = 5 + 161/180 = 5 161/180
Ответ: 5 161/180