-12/7 + 3/14

To solve this arithmetic expression, we need to find a common denominator for the fractions -12/7 and 3/14. The common denominator is 14.

Next, we can rewrite -12/7 as (-12/7) * (2/2) = -24/14.

Now, the expression becomes (-24/14) + 3/14.

To add the fractions, we keep the denominator the same and add the numerators: (-24 + 3) / 14 = -21/14.

Therefore, -12/7 + 3/14 equals -21/14.

To add the fractions -12/7 and 3/14, you need to find a common denominator. The least common multiple (LCM) of 7 and 14 is 14.

Now, we can rewrite the fractions using the common denominator of 14:

-12/7 = -24/14
3/14 = 3/14

Now, combine the numerators with the common denominator:

-24/14 + 3/14 = -24 + 3 /14

Simplify the numerator:

-21/14 = -3/2

Therefore, the sum of -12/7 and 3/14 is -3/2.