Basic Math Examples

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Basic Math
Evaluate 9/11-4/9
911-49911−49
Step 1
To write 911911 as a fraction with a common denominator, multiply by 9999.
911⋅99-49911⋅99−49
Step 2
To write -49−49 as a fraction with a common denominator, multiply by 11111111.
911⋅99-49⋅1111911⋅99−49⋅1111
Step 3
Write each expression with a common denominator of 9999, by multiplying each by an appropriate factor of 11.
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Step 3.1
Multiply 911911 by 9999.
9⋅911⋅9-49⋅11119⋅911⋅9−49⋅1111
Step 3.2
Multiply 1111 by 99.
9⋅999-49⋅11119⋅999−49⋅1111
Step 3.3
Multiply 4949 by 11111111.
9⋅999-4⋅119⋅119⋅999−4⋅119⋅11
Step 3.4
Multiply 99 by 1111.
9⋅999-4⋅11999⋅999−4⋅1199
9⋅999-4⋅11999⋅999−4⋅1199
Step 4
Combine the numerators over the common denominator.
9⋅9-4⋅11999⋅9−4⋅1199
Step 5
Simplify the numerator.
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Step 5.1
Multiply 99 by 99.
81-4⋅119981−4⋅1199
Step 5.2
Multiply -4−4 by 1111.
81-449981−4499
Step 5.3
Subtract 4444 from 8181.
37993799
37993799
Step 6
The result can be shown in multiple forms.
Exact Form:
37993799
Decimal Form:
0.‾370.¯¯¯¯37
 [x2  12  √π  ∫xdx ]  ⎡⎢⎣x2  12  √π  ∫xdx ⎤⎥⎦