Basic Math Examples

Evaluate 13/18-5/18
1318-518
Step 1
Combine the numerators over the common denominator.
13-518
Step 2
Subtract 5 from 13.
818
Step 3
Cancel the common factor of 8 and 18.
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Step 3.1
Factor 2 out of 8.
2(4)18
Step 3.2
Cancel the common factors.
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Step 3.2.1
Factor 2 out of 18.
2429
Step 3.2.2
Cancel the common factor.
2429
Step 3.2.3
Rewrite the expression.
49
49
49
Step 4
The result can be shown in multiple forms.
Exact Form:
49
Decimal Form:
0.4
1318-518
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