Evaluate -1/20+7/10

Math
-120+710
To write 710 as a fraction with a common denominator, multiply by 22.
-120+710⋅22
Write each expression with a common denominator of 20, by multiplying each by an appropriate factor of 1.
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Multiply 710 and 22.
-120+7⋅210⋅2
Multiply 10 by 2.
-120+7⋅220
-120+7⋅220
Combine the numerators over the common denominator.
-1+7⋅220
Simplify the numerator.
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Multiply 7 by 2.
-1+1420
Add -1 and 14.
1320
1320
The result can be shown in multiple forms.
Exact Form:
1320
Decimal Form:
0.65
Evaluate -1/20+7/10

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