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math115

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add -57+(-22)=-79
place numbers in acsending order 25,-13,8,-2,13,3,18=-13,-2,3,8,13,18,25
perform the indicated operation -21-(-9)/-21-(-21)=-12/-42
add -3/5+(8/35)=13/35
subtract -2.3-(-8.8)=6.5

  • math115 -

    perform the indicated operation -21-(-9)/-21-(-21)=-12/-42
    You may have parentheses missing.
    You need to ADD parentheses around a denominator and a numerator of a fraction.

    add -3/5+(8/35)=13/35
    -3/5 = -21/35, so it cannot be positive when added to 8/35.

  • math115 -

    -29/35?

  • math115 -

    ow so the answer would be negative -13/35?

  • math115 -

    -13/35 is correct.

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