Evaluate -2/15+9/10

Math
-215+910
To write -215 as a fraction with a common denominator, multiply by 22.
-215⋅22+910
To write 910 as a fraction with a common denominator, multiply by 33.
-215⋅22+910⋅33
Write each expression with a common denominator of 30, by multiplying each by an appropriate factor of 1.
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Multiply 215 and 22.
-2⋅215⋅2+910⋅33
Multiply 15 by 2.
-2⋅230+910⋅33
Multiply 910 and 33.
-2⋅230+9⋅310⋅3
Multiply 10 by 3.
-2⋅230+9⋅330
-2⋅230+9⋅330
Combine the numerators over the common denominator.
-2⋅2+9⋅330
Simplify the numerator.
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Multiply -2 by 2.
-4+9⋅330
Multiply 9 by 3.
-4+2730
Add -4 and 27.
2330
2330
The result can be shown in multiple forms.
Exact Form:
2330
Decimal Form:
0.76‾
Evaluate -2/15+9/10

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