Question

1) 14/15 + 8/10 2)3,5 - 1/2 3)18/5 перевести в десятичную

Answer 1

1) 14/15 + 8/10 = 28/30 + 24/30 = 52/30 = 1 22/30 = 1 11/15

2) 3.5 - 1/2 = 3.5 - 0.5 = 3

3) 18/5 = 3 3/5 = 3.6

Answer 2

1) 14/15 + 8/10=28+24/30=52/30=1 целых 22/30=1 целых 11/15

2)3,5 - 1/2=3 целых 1/2 - 1/2=3

3)18/5=3 целых 3/5=3,6

Answer 3

1. To add these fractions, we need to first find a common denominator. The smallest common multiple of 15 and 10 is 30, so we can rewrite the fractions as:

14/15 + 8/10 = (142)/(152) + (83)/(103) = 28/30 + 24/30

Now we can add the numerators:

28/30 + 24/30 = 52/30

This fraction can be simplified by dividing both numerator and denominator by their greatest common factor, which is 2:

52/30 = (226)/(215) = 26/15

So the sum of 14/15 and 8/10 is 26/15.

2. To subtract these mixed numbers, we need to convert 3,5 to a fraction. 3,5 is the same as 3 + 0,5, so we can write it as:

3,5 = 3 + 1/2

Now we can subtract:

3,5 - 1/2 = (3 + 1/2) - 1/2 = 3

So the difference between 3,5 and 1/2 is 3.

3. To convert 18/5 to a decimal, we simply divide the numerator by the denominator:

18/5 = 3.6

So 18/5 as a decimal is 3.6.