Question

(-1/2)+(-7/10)-(-3/5)-(+8/15)=

Answer 1

(-1/2) +(-7/10) - (- 3/5) - (+8/15) = - 1/2 - 7/10 + 3/5 - 8/15 =
-15/30 - 21/30 +18/30 - 16/30 = -34/30 = - 1 4/30 = - 1 2/15

Answer 2

To simplify the given expression:

(-1/2) + (-7/10) - (-3/5) - (+8/15)

We can start by simplifying the negatives and positives:

(-1/2) + (-7/10) + (3/5) - (8/15)

Now, let's find a common denominator for all the fractions. The least common multiple of 2, 10, 5, and 15 is 30.

So, we can rewrite the fractions with a denominator of 30:

(-15/30) + (-21/30) + (18/30) - (16/30)

Next, we can add and subtract the numerators:

(-15 - 21 + 18 - 16) / 30

Simplifying further:

(-33 + 18 - 16) / 30

(-33 - 16 + 18) / 30

(-49 + 18) / 30

-31/30

Therefore, (-1/2) + (-7/10) - (-3/5) - (+8/15) simplifies to -31/30.