Evaluate -9/10+1/2

Math
-910+12
To write 12 as a fraction with a common denominator, multiply by 55.
-910+12⋅55
Write each expression with a common denominator of 10, by multiplying each by an appropriate factor of 1.
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Multiply 12 and 55.
-910+52⋅5
Multiply 2 by 5.
-910+510
-910+510
Combine the numerators over the common denominator.
-9+510
Add -9 and 5.
-410
Cancel the common factor of -4 and 10.
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Factor 2 out of -4.
2(-2)10
Cancel the common factors.
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Factor 2 out of 10.
2⋅-22⋅5
Cancel the common factor.
2⋅-22⋅5
Rewrite the expression.
-25
-25
-25
Move the negative in front of the fraction.
-25
The result can be shown in multiple forms.
Exact Form:
-25
Decimal Form:
-0.4
Evaluate -9/10+1/2

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