Question

7 • 3/4= 1-целая3/5 • 5/7= 5 • 3/25= 10-целых2/3 • 3/8= 8 • 1/4= 5-целых1/4 • 2/7= 9 • 2/3= 3-целых1/3 • 2-целых1/10=

Answer 1

7*3/4=21/4=5 1/4
1 3/5*5/7=8/5*5/7=8/7=1 1/7
5*3/25=15/25=3/5
10 2/3*3/8=32/3*3/8=4
8*1/4=2
5 1/4*2/7=21/4*2/7=3/2=1 1/2
9*2/3=6
3 1/3*2 1/10=10/3*21/10=7

Answer 2

Для решения этих уравнений смешанных чисел, мы будем использовать правило умножения смешанных чисел.

1) 7 • 3/4 = 7 * 3 + 7 * 1/4 = 21 + 7/4 = 21 7/4

2) 5/7 • 3/25 = 5/7 * 3/25 = 15/175 = 3/35

3) 10 • 2/3 = 10 * 2 + 10 * 1/3 = 20 + 10/3 = 20 10/3

4) 8 • 1/4 = 8 * 1 + 8 * 1/4 = 8 + 2 = 10

5) 5 • 1/3 = 5 * 1 + 5 * 1/3 = 5 + 5/3 = 5 5/3

6) 9 • 2/7 = 9 * 2 + 9 * 1/7 = 18 + 9/7 = 18 9/7

7) 3 • 1/10 = 3 * 1 + 3 * 1/10 = 3 + 3/10 = 3 3/10

Таким образом, ответы на уравнения равны: 1) 7 • 3/4 = 21 7/4 2) 5/7 • 3/25 = 3/35 3) 10 • 2/3 = 20 10/3 4) 8 • 1/4 = 10 5) 5 • 1/3 = 5 5/3 6) 9 • 2/7 = 18 9/7 7) 3 • 1/10 = 3 3/10

Answer 3

7 • 3/4 = 7 * 3/4 = 21/4 = 5 1/4

5/7 • 5/7 = (5 * 5) / (7 * 7) = 25/49

5 • 3/25 = 5 * 3/25 = 15/25 = 3/5

10 - 2/3 = 10 * 3/3 - 2/3 = 30/3 - 2/3 = 28/3 = 9 1/3

8 • 1/4 = 8 * 1/4 = 8/4 = 2

5 - 1/4 = 5 * 4/4 - 1/4 = 20/4 - 1/4 = 19/4 = 4 3/4

1/4 • 2/7 = (1 * 2) / (4 * 7) = 2/28 = 1/14

9 • 2/3 = 9 * 2/3 = 18/3 = 6

3 - 1/3 = 3 * 3/3 - 1/3 = 9/3 - 1/3 = 8/3 = 2 2/3

1/10 • 2 = 1 * 2/10 = 2/10 = 1/5