math

-3/5 +8/35=?

7/9 -(-13/18)=

(4)(-3/2)=

-21-(-9)=

-21-(-21)=

  1. 1
asked by deedee
  1. -3/5 +8/35=?

    First get a common denominator; in this case it's 35.

    -21/35 + 8/35 = -13/35

    Try the others yourself. We'll be glad to check your answers.

    posted by Ms. Sue
  2. 7/9-(-13/18)

    14/18-(-13/18)

    27/18=3/2
    is this correct?

    posted by deedee
  3. (4)(-3/2)

    (8/2)(-3/2)= -24/4

    -6

    posted by deedee
  4. Right. And 3/2 = 1 1/2

    posted by Ms. Sue
  5. Right! (4)(-3/2) = -6

    posted by Ms. Sue
  6. ok I have -21-(-9)=-12

    wouldn't -21-(-21)=0

    posted by deedee
  7. Both are right! Great! :-)

    posted by Ms. Sue
  8. Thank you very much!

    posted by deedee
  9. You're very welcome! :-)

    posted by Ms. Sue

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