What is 90.897−81.725?
6 answers
90.897 - 81.725 = 9.172
What is 12 8/15 − 7 + 7/15 + 15?
To compute this, we first convert the mixed number 12 8/15 into an improper fraction.
12 8/15 = (12 * 15 + 8)/15 = 188/15
Now, we can add up all the terms:
188/15 - 7 + 7/15 + 15
To add fractions with different denominators, we first need to find a common denominator. In this case, the common denominator will be 15.
Now we can rewrite the expression:
(188/15) - (7 * 15/15) + (7/15) + (15 * 15/15)
Simplifying further:
(188/15) - (105/15) + (7/15) + (225/15)
Now, we can add up the numerators:
(188 - 105 + 7 + 225)/15
330/15
Finally, we can simplify this fraction, if possible:
330/15 = 22
Therefore, 12 8/15 - 7 + 7/15 + 15 = 22.
12 8/15 = (12 * 15 + 8)/15 = 188/15
Now, we can add up all the terms:
188/15 - 7 + 7/15 + 15
To add fractions with different denominators, we first need to find a common denominator. In this case, the common denominator will be 15.
Now we can rewrite the expression:
(188/15) - (7 * 15/15) + (7/15) + (15 * 15/15)
Simplifying further:
(188/15) - (105/15) + (7/15) + (225/15)
Now, we can add up the numerators:
(188 - 105 + 7 + 225)/15
330/15
Finally, we can simplify this fraction, if possible:
330/15 = 22
Therefore, 12 8/15 - 7 + 7/15 + 15 = 22.
How should you group the following expression to make it easiest to add? 18 − 9 4/9 + 7/9 − 8?
To make it easiest to add, we should group the expression by combining the whole numbers and fractions separately.
18 - 9 4/9 + 7/9 - 8
First, combine the whole numbers:
18 - 8 = 10
Now, let's combine the fractions:
- 9 4/9 + 7/9
To combine these fractions, we need a common denominator of 9.
- 9 4/9 = - (9 * 9 + 4)/9 = - (81 + 4)/9 = - 85/9
Thus, the grouped expression becomes:
10 + (-85/9) + (7/9)
Now, we can add the fractions, as they have the same denominator:
10 - (85/9) + (7/9)
To add these fractions, we just add the numerators and keep the common denominator:
10 - (85 + 7)/9
10 - 92/9
Finally, we can simplify the fraction:
10 - 92/9 = (90/9) - (92/9) = -2/9
So, the grouped expression becomes:
10 - 92/9 = -2/9
18 - 9 4/9 + 7/9 - 8
First, combine the whole numbers:
18 - 8 = 10
Now, let's combine the fractions:
- 9 4/9 + 7/9
To combine these fractions, we need a common denominator of 9.
- 9 4/9 = - (9 * 9 + 4)/9 = - (81 + 4)/9 = - 85/9
Thus, the grouped expression becomes:
10 + (-85/9) + (7/9)
Now, we can add the fractions, as they have the same denominator:
10 - (85/9) + (7/9)
To add these fractions, we just add the numerators and keep the common denominator:
10 - (85 + 7)/9
10 - 92/9
Finally, we can simplify the fraction:
10 - 92/9 = (90/9) - (92/9) = -2/9
So, the grouped expression becomes:
10 - 92/9 = -2/9
What is −6712 − 413?(1 point)