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15
Candido Kohler
Wiki User
∙ 13y ago12 + 3 = 15
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What is -9 add 12?
3
What is the quotient of 12 and 3 add 1?
12/3 + 1 = 5
What is three quarters add three twelves?
3/4 + 3/12 = 9/12+3/12 = 1
Why do fractions need to have a common denomineto before you add or subtract them?
To get the right answer. If you add 1/3 and 1/4, you might not be as successful as when you add 4/12 and 3/12.
Why does the common denominator have to be the same number when you subtract or add fractions?
To get the right answer. If you add 1/3 and 1/4, you might not be as successful as when you add 4/12 and 3/12.
What minus 12 equals 3?
x - 12 = 3 Add '12' to both sides x = 3 + 12 x = 15
What two numbers add to 9 and multiply to 36?
45
What two numbers add up to be 3 and multiply to be -12?
-9
What is two thirds plus one quarter?
To add two fractions, find a common denominator. In this case, it's 12. The 2/3 = 8/12, and the 1/4 = 3/12 so we're ready to add. 8/12 + 3/12 = 8 + 3 over 12 which equals 11/12.
How are equivalent fractions used when adding unlike fractions?
If you need to add 1/3 and 1/4, both can be converted into equivalent fractions using 12 as the common denominator. 1/3 is multiplied by 4/4 to get 4/12. 1/4 is multiplied by 3/3 to get 3/12. Add them, 4/12 + 3/12 = 7/12.
If the sum of 7 and 9 is more than 12 add 12 add 3 if less subtract 2?
19
What factors of -12 add up to 5?
-7
