What is 4− 1 1/4+1/2

Question

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Answer 1

To solve this expression, let's simplify each fraction first.

1 1/4 can be written as 5/4 because 1 whole represents 4/4, so adding 1/4 to it gives 5/4.

Thus, the expression becomes:
4 - 5/4 + 1/2

Now, let's find a common denominator to add or subtract the fractions.

The common denominator is 4, so we need to rewrite 1/2 as 2/4.

Now, the expression becomes:
4 - 5/4 + 2/4

Now, the fractions have the same denominator, so we can add or subtract them.

4 - 5/4 + 2/4 = [(4*4) - 5 + 2] / 4

= (16 - 5 + 2) / 4

= (13 + 2) / 4

= 15/4

Therefore, 4 - 1 1/4 + 1/2 is equal to 15/4.

Answer 2

Which of the following expressions represents a number greater than 1? (choose 2

Answer 3

To determine which expressions represent a number greater than 1, we need to evaluate each expression.

1. 3/4

To evaluate this expression, we divide 3 by 4:
3 ÷ 4 = 0.75.

Since 0.75 is less than 1, 3/4 does not represent a number greater than 1.

2. 5/3

To evaluate this expression, we divide 5 by 3:
5 ÷ 3 ≈ 1.67.

Since 1.67 is greater than 1, 5/3 represents a number greater than 1.

3. 7/8

To evaluate this expression, we divide 7 by 8:
7 ÷ 8 ≈ 0.88.

Since 0.88 is less than 1, 7/8 does not represent a number greater than 1.

4. 2/5

To evaluate this expression, we divide 2 by 5:
2 ÷ 5 = 0.4.

Since 0.4 is less than 1, 2/5 does not represent a number greater than 1.

Therefore, the expressions that represent a number greater than 1 are 5/3 and 7/8.