Evaluate -2/5-1/2

Math
-25-12
To write -25 as a fraction with a common denominator, multiply by 22.
-25⋅22-12
To write -12 as a fraction with a common denominator, multiply by 55.
-25⋅22-12⋅55
Write each expression with a common denominator of 10, by multiplying each by an appropriate factor of 1.
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Multiply 25 and 22.
-2⋅25⋅2-12⋅55
Multiply 5 by 2.
-2⋅210-12⋅55
Multiply 12 and 55.
-2⋅210-52⋅5
Multiply 2 by 5.
-2⋅210-510
-2⋅210-510
Combine the numerators over the common denominator.
-2⋅2-510
Simplify the numerator.
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Multiply -2 by 2.
-4-510
Subtract 5 from -4.
-910
-910
Move the negative in front of the fraction.
-910
The result can be shown in multiple forms.
Exact Form:
-910
Decimal Form:
-0.9
Evaluate -2/5-1/2

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