Basic Math Examples

Simplify 7 8/9-7/9
789-7978979
Step 1
Convert 789789 to an improper fraction.
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Step 1.1
A mixed number is an addition of its whole and fractional parts.
7+89-797+8979
Step 1.2
Add 77 and 8989.
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Step 1.2.1
To write 77 as a fraction with a common denominator, multiply by 9999.
799+89-79799+8979
Step 1.2.2
Combine 77 and 9999.
799+89-79799+8979
Step 1.2.3
Combine the numerators over the common denominator.
79+89-7979+8979
Step 1.2.4
Simplify the numerator.
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Step 1.2.4.1
Multiply 77 by 99.
63+89-7963+8979
Step 1.2.4.2
Add 6363 and 88.
719-7971979
719-7971979
719-7971979
719-7971979
Step 2
Combine the numerators over the common denominator.
71-797179
Step 3
Subtract 77 from 7171.
649649
Step 4
The result can be shown in multiple forms.
Exact Form:
649649
Decimal Form:
7.17.¯1
Mixed Number Form:
719719
 [x2  12  π  xdx ]  x2  12  π  xdx