Question

А)8/18-8/27б)7/16-5/24в)2/11-1/12г)12/13-15/26д)9/28-11/35е)39/40-19/28

Answer 1

А)4/27
б)11/48
в)13/132
г)9/26
д)1/140
е)3 целых  31/140

Answer 2

А) 8/18 - 8/27: To subtract fractions, we need to have a common denominator. In this case, the common denominator is 18.

8/18 - 8/27 = (8/18) - (8/27)

To subtract fractions with the same denominator, we subtract the numerators and keep the denominator the same.

= (8 - 8)/18 = 0/18 = 0

Therefore, the result of 8/18 - 8/27 is 0.

B) 7/16 - 5/24: Again, we need to find a common denominator, which in this case is 48.

7/16 - 5/24 = (7/16) - (5/24)

= (21/48) - (10/48) = 11/48

Therefore, the result of 7/16 - 5/24 is 11/48.

В) 2/11 - 1/12: The common denominator in this case is 132.

2/11 - 1/12 = (2/11) - (1/12)

= (24/132) - (11/132) = 13/132

Therefore, the result of 2/11 - 1/12 is 13/132.

Г) 12/13 - 15/26: The common denominator in this case is 26.

12/13 - 15/26 = (12/13) - (15/26)

= (24/26) - (15/26) = 9/26

Therefore, the result of 12/13 - 15/26 is 9/26.

Д) 9/28 - 11/35: The common denominator in this case is 140.

9/28 - 11/35 = (9/28) - (11/35)

= (45/140) - (44/140) = 1/140

Therefore, the result of 9/28 - 11/35 is 1/140.

Е) 39/40 - 19/28: The common denominator in this case is 280.

39/40 - 19/28 = (39/40) - (19/28)

= (273/280) - (190/280) = 83/280

Therefore, the result of 39/40 - 19/28 is 83/280.

I hope this helps! Let me know if you have any further questions.