How do you add and subtract whole numbers?
Also to know is, how do you add or subtract whole numbers and fractions?
Step 1: Separate the whole number from the fraction part of each number. Step 2: Add the whole numbers and then add the fractions. Again, we will need to get common denominators so that we can add the fractions. The second fraction already has 10 as the denominator, so we are ready to add.
Likewise, how do you add improper fractions with different denominators? Method 1 Working with Improper Fractions
- Find the least common multiple (LCM) for the denominators.
- Multiply the numerator and denominator to get like denominators.
- Turn the other fractions into equivalent fractions.
- Add the numerators but leave the denominators the same - these don't change.
In this regard, what is 2/3 as a whole number?
Decimal Doings To convert 2/3 to decimal, divide the numerator by the denominator: 2 / 3 = 0.66666 7, which you can round to 0.67. For example, to find 2/3 of 21: 0.67 * 21 = 14.07. Round to the nearest whole number: 14.
What are the rules for adding and subtracting negative numbers?
|+(+)||Two like signs become a positive sign||3+(+2) = 3 + 2 = 5|
|−(−)||6−(−3) = 6 + 3 = 9|
|+(−)||Two unlike signs become a negative sign||7+(−2) = 7 − 2 = 5|
|−(+)||8−(+2) = 8 − 2 = 6|