Question

1 целая -3/20= 4 целые 1/7-2 целые 3/7= 18 целых 7/11 -9 целых 10/11=

Answer 1

20/20-3/20=17/20

29/7-17/7=12/7

205/11-109/11=96/11=8 8/11

Answer 2

To solve the given equations, let's perform the calculations step by step:

1. 1 - 3/20

To subtract fractions, we need a common denominator. In this case, the common denominator is 20. So, we have:

1 - 3/20 = 20/20 - 3/20 = (20 - 3)/20 = 17/20

The result is 17/20, which can also be expressed as 0 целых 17/20.

2. 4 1/7 - 2 3/7

To subtract mixed numbers, we can start by converting them into improper fractions. The common denominator is 7. So, we have:

4 1/7 = (4*7 + 1)/7 = 29/7 2 3/7 = (2*7 + 3)/7 = 17/7

Now, subtracting the fractions:

29/7 - 17/7 = (29 - 17)/7 = 12/7

The result is 1 целая 5/7.

3. 18 7/11 - 9 10/11

Similarly, we convert the mixed numbers into improper fractions using the common denominator 11:

18 7/11 = (18*11 + 7)/11 = 205/11 9 10/11 = (9*11 + 10)/11 = 109/11

Now, subtracting the fractions:

205/11 - 109/11 = (205 - 109)/11 = 96/11

The result is 8 целых 8/11.

So, the final answers are:

1. 1 - 3/20 = 0 целых 17/20
2. 4 1/7 - 2 3/7 = 1 целая 5/7
3. 18 7/11 - 9 10/11 = 8 целых 8/11