-7 2/3 + (-5 1/2) + 8 3/4 =
To add these mixed numbers, we first need to convert them into improper fractions.
-7 2/3 = -7 * 3/3 + 2/3 = -21/3 + 2/3 = -19/3
-5 1/2 = -5 * 2/2 + 1/2 = -10/2 + 1/2 = -9/2
8 3/4 = 8 * 4/4 + 3/4 = 32/4 + 3/4 = 35/4
Now we can add the fractions:
-19/3 + (-9/2) + 35/4
To add fractions, we need a common denominator. The least common multiple of 3, 2, and 4 is 12.
-19/3 = (-19/3) * (4/4) = -76/12
-9/2 = (-9/2) * (6/6) = -54/12
Now we can add the fractions:
-76/12 + (-54/12) + 35/4
Combine the numerators:
-76 - 54 + 35 = -95
The denominator remains the same: 12.
-95/12 is the final answer.
-95/12 into ? ?/12
The fraction -95/12 cannot be simplified any further.
what is -2.3 - (4.5- 3 1/2) ?
First, let's convert the mixed number 3 1/2 into an improper fraction.
3 1/2 = 3 + 1/2 = 6/2 + 1/2 = 7/2
Now we can simplify the expression:
-2.3 - (4.5 - 7/2)
To subtract a negative expression, we can change the subtraction to addition and change the sign of the expression being subtracted:
-2.3 + (-4.5 + 7/2)
Now we can simplify the addition:
-2.3 + (-4.5 + 7/2) = -2.3 - 4.5 + 7/2
Combining like terms, we have:
-6.8 + 7/2
To add a decimal to a fraction, we need to convert the fraction to a decimal.
7/2 = 7 รท 2 = 3.5
Now we can add the decimal and the fraction:
-6.8 + 3.5 = -3.3
Therefore, -2.3 - (4.5 - 3 1/2) is equal to -3.3.
33.9 x 10^5 =?
To express 33.9 x 10^5 in standard form, we multiply 33.9 by 10 raised to the power of 5:
33.9 x 10^5 = 339,0000
Therefore, 33.9 x 10^5 is equal to 3,390,000.
3.39 x 10^5
To express 3.39 x 10^5 in standard form, we multiply 3.39 by 10 raised to the power of 5:
3.39 x 10^5 = 339,000
Therefore, 3.39 x 10^5 is equal to 339,000.