-2/3 + (-3/10) =
-2/3+(-3/10)=
-20/30 + (-9/30) = -20/30
-20/30 + (-9/30) = -29/30.
To add the two fractions, we need to find a common denominator. The common denominator for 3 and 10 is 30. Now let's convert -2/3 and -3/10 into fractions with a denominator of 30.
To convert -2/3 to an equivalent fraction with a denominator of 30, we can multiply both the numerator and denominator by 10:
(-2/3) * (10/10) = -20/30
Similarly, to convert -3/10 to an equivalent fraction with a denominator of 30, we can multiply both the numerator and denominator by 3:
(-3/10) * (3/3) = -9/30
Now that both fractions have a common denominator of 30, we can add them together:
-20/30 + (-9/30) = (-20 - 9)/30 = -29/30
Therefore, -2/3 + (-3/10) equals -29/30.