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Basic Math Examples
789-79789−79
Step 1
Step 1.1
A mixed number is an addition of its whole and fractional parts.
7+89-797+89−79
Step 1.2
Add 77 and 8989.
Step 1.2.1
To write 77 as a fraction with a common denominator, multiply by 9999.
7⋅99+89-797⋅99+89−79
Step 1.2.2
Combine 77 and 9999.
7⋅99+89-797⋅99+89−79
Step 1.2.3
Combine the numerators over the common denominator.
7⋅9+89-797⋅9+89−79
Step 1.2.4
Simplify the numerator.
Step 1.2.4.1
Multiply 77 by 99.
63+89-7963+89−79
Step 1.2.4.2
Add 6363 and 88.
719-79719−79
719-79719−79
719-79719−79
719-79719−79
Step 2
Combine the numerators over the common denominator.
71-7971−79
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