Evaluate -1/20-3/5

Math
-120-35
To write -35 as a fraction with a common denominator, multiply by 44.
-120-35⋅44
Write each expression with a common denominator of 20, by multiplying each by an appropriate factor of 1.
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Multiply 35 and 44.
-120-3⋅45⋅4
Multiply 5 by 4.
-120-3⋅420
-120-3⋅420
Combine the numerators over the common denominator.
-1-3⋅420
Simplify the numerator.
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Multiply -3 by 4.
-1-1220
Subtract 12 from -1.
-1320
-1320
Move the negative in front of the fraction.
-1320
The result can be shown in multiple forms.
Exact Form:
-1320
Decimal Form:
-0.65
Evaluate -1/20-3/5

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