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Q: What is adding and subtracting with like denominators 2 15 and 14 15?

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You need to change the denominators so they are the same ( by timesing them together) E.g. 1/7 1/2 7x2=14

find it by adding the numbers and then subtracting 14

When we add 22 and -14 it is the same as 22-14. In general adding a negative number is the same as subtracting the number. The answer is 8.

8

Subtracting a negative number is the same as adding a positive number. In this instance, 14 - (-20) = 14 + 20 = 34.

36

8

When subtracting negative numbers change the subtraction sign to a plus and change the second number (which would appear to be positive) to a negative. ex. -14 - 7=?/-14 + -7= -21 When adding negative numbers just add them as they appear. ex. -2 + -5= -7

You start with -6you add (+)-10then take away (-)-2what do you get?Adding a negative is subtracting, and subtracting (taking away) a negative is adding. (-6) + (-10) - (-2) = ?-6 - 10 + 2 = -14 ◄

18 is the answer. The pattern is alternating adding and subtracting the list of prime numbers.

LCM = 56

14

28

42

The sum or difference will take the sign of whichever number is larger (disregarding the signs). -6 + 8 = 2 6 + -8 = -2 8 - (-6) = 14 -8 - 6 = -14

-1

No, they are integers. If they were denominators, their LCD would be 42.

Around the ages of 14 - 15 years (But I don't know what grade that is, since I was a UK student. They use "years" instead of grades).

You first find a common denominator (eg for 2/3 and 4/7, it would be changed to 14/21 and 13/21) and then subtract them for each other. When doing this, you always multiply the numerator and denominator (top and bottom numbers) by the same amount

26

The Least Common Multiple (LCM) for 7 14 10 is 70.

Two fractions having different denominators cannot be added or subtracted directly. They need to be converted to equivalent fractions having the same denominator to enable the addition or subtraction to take place. It is possible to use the product of the denominators of the original fractions as the common denominator but it simplifies the mathematics if the lowest common multiple of the two denominators is used. EXAMPLE : Add 2/5 and 3/7. The lowest common denominator (also the LCM) of 5 and 7 is 35. 2/5 is equivalent to 2 x 7/5 x 7 = 14/35 : 3/7 is equivalent to 3 x 5/7 x 5 = 15/35 2/5 + 3/7 = 14/35 + 15/35 = 29/35

IXY would be 14 in roman numerals because an "i" in front of something would be subtracting, and "X" means 10. Meaning you do 10 - 1 = 9 then adding 5 because of "V" meaning 5. 9 + 5 =14. IXY = 14

There are 4 quarts in a gallon. Therefore, 3.5 gallons is equal to 14 quarts. Subtracting this from 14 quarts gives 14 - 14 = 0 quarts.

Sum of the fractions = sum of numerators divided by their common denominator. Adding Fractions rule implies to addition of fractions having same denominator and as well as adding fractions with different denominators. So rule for adding fractions having the same denominator is add the numerators and simplify For example : 3/5 + 2/5 + 9/5 = (3 + 2 + 9)/5 [add the numerators] = 14/5