Question

21/30+3/30-8/30 61/200-(35/200-19/200) 21/65-16/65+13/65

Answer 1

Ответ:

21/30+3/30-8/30 = 16/30=8/15

61/200-(35/200-19/200)=45/200=9/40

21/65-16/65+13/65=18/65

Answer 2

Let's simplify each of these expressions step by step:

1. 21/30 + 3/30 - 8/30:

First, add the fractions with the same denominator: (21/30 + 3/30) = (24/30)

Now, subtract 8/30 from this result: (24/30 - 8/30) = (16/30)

Reduce the fraction to its simplest form: (16/30) = (8/15)

So, 21/30 + 3/30 - 8/30 = 8/15.

2. 61/200 - (35/200 - 19/200):

First, subtract the parentheses: (35/200 - 19/200) = (16/200)

Now, subtract the result from 61/200: (61/200 - 16/200) = (45/200)

Reduce the fraction to its simplest form: (45/200) = (9/40)

So, 61/200 - (35/200 - 19/200) = 9/40.

3. 21/65 - 16/65 + 13/65:

First, add the fractions with the same denominator: (21/65 - 16/65 + 13/65) = (18/65)

So, 21/65 - 16/65 + 13/65 = 18/65.

The simplified expressions for the given equations are:

1. 21/30 + 3/30 - 8/30 = 8/15.
2. 61/200 - (35/200 - 19/200) = 9/40.
3. 21/65 - 16/65 + 13/65 = 18/65.