Question

Решите пж 3/4-4/9; 7/5-5/12; 11/12-1/18.

Answer 1

Решение во вложении...

Answer 2

Sure, I'd be happy to help you solve these arithmetic problems. Here are the results:

1. 3/4 - 4/9: To subtract fractions, we need to find a common denominator, which is the least common multiple (LCM) of the denominators 4 and 9, which is 36.

3/4 = (3 * 9) / (4 * 9) = 27/36 4/9 = (4 * 4) / (9 * 4) = 16/36

Now, we can subtract the fractions:

(27/36) - (16/36) = (27 - 16) / 36 = 11/36

So, 3/4 - 4/9 = 11/36.

2. 7/5 - 5/12: Again, we need to find a common denominator, which is the LCM of the denominators 5 and 12, which is 60.

7/5 = (7 * 12) / (5 * 12) = 84/60 5/12 = (5 * 5) / (12 * 5) = 25/60

Now, we can subtract the fractions:

(84/60) - (25/60) = (84 - 25) / 60 = 59/60

So, 7/5 - 5/12 = 59/60.

3. 11/12 - 1/18: Once again, find a common denominator, which is the LCM of the denominators 12 and 18, which is 36.

11/12 = (11 * 3) / (12 * 3) = 33/36 1/18 = (1 * 2) / (18 * 2) = 2/36

Now, we can subtract the fractions:

(33/36) - (2/36) = (33 - 2) / 36 = 31/36

So, 11/12 - 1/18 = 31/36.

Final answers:

1. 3/4 - 4/9 = 11/36
2. 7/5 - 5/12 = 59/60
3. 11/12 - 1/18 = 31/36