Basic Math Examples

Simplify (-2 7/9)÷2 4/9
-279÷249
Step 1
Convert 279 to an improper fraction.
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Step 1.1
A mixed number is an addition of its whole and fractional parts.
-(2+79)÷249
Step 1.2
Add 2 and 79.
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Step 1.2.1
To write 2 as a fraction with a common denominator, multiply by 99.
-(299+79)÷249
Step 1.2.2
Combine 2 and 99.
-(299+79)÷249
Step 1.2.3
Combine the numerators over the common denominator.
-29+79÷249
Step 1.2.4
Simplify the numerator.
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Step 1.2.4.1
Multiply 2 by 9.
-18+79÷249
Step 1.2.4.2
Add 18 and 7.
-259÷249
-259÷249
-259÷249
-259÷249
Step 2
Convert 249 to an improper fraction.
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Step 2.1
A mixed number is an addition of its whole and fractional parts.
-259÷(2+49)
Step 2.2
Add 2 and 49.
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Step 2.2.1
To write 2 as a fraction with a common denominator, multiply by 99.
-259÷(299+49)
Step 2.2.2
Combine 2 and 99.
-259÷(299+49)
Step 2.2.3
Combine the numerators over the common denominator.
-259÷29+49
Step 2.2.4
Simplify the numerator.
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Step 2.2.4.1
Multiply 2 by 9.
-259÷18+49
Step 2.2.4.2
Add 18 and 4.
-259÷229
-259÷229
-259÷229
-259÷229
Step 3
To divide by a fraction, multiply by its reciprocal.
-259922
Step 4
Cancel the common factor of 9.
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Step 4.1
Move the leading negative in -259 into the numerator.
-259922
Step 4.2
Cancel the common factor.
-259922
Step 4.3
Rewrite the expression.
-25(122)
-25(122)
Step 5
Combine -25 and 122.
-2522
Step 6
Move the negative in front of the fraction.
-2522
Step 7
The result can be shown in multiple forms.
Exact Form:
-2522
Decimal Form:
-1.136
Mixed Number Form:
-1322
 [x2  12  π  xdx ]