Basic Math Examples

Popular Problems
Basic Math
Evaluate 3/5-4/9
35−49
Step 1
To write 35 as a fraction with a common denominator, multiply by 99.
35⋅99−49
Step 2
To write −49 as a fraction with a common denominator, multiply by 55.
35⋅99−49⋅55
Step 3
Write each expression with a common denominator of 45, by multiplying each by an appropriate factor of 1.
Tap for more steps...
Step 3.1
Multiply 35 by 99.
3⋅95⋅9−49⋅55
Step 3.2
Multiply 5 by 9.
3⋅945−49⋅55
Step 3.3
Multiply 49 by 55.
3⋅945−4⋅59⋅5
Step 3.4
Multiply 9 by 5.
3⋅945−4⋅545
3⋅945−4⋅545
Step 4
Combine the numerators over the common denominator.
3⋅9−4⋅545
Step 5
Simplify the numerator.
Tap for more steps...
Step 5.1
Multiply 3 by 9.
27−4⋅545
Step 5.2
Multiply −4 by 5.
27−2045
Step 5.3
Subtract 20 from 27.
745
745
Step 6
The result can be shown in multiple forms.
Exact Form:
745
Decimal Form:
0.1¯5
 ⎡⎢⎣x2  12  √π  ∫xdx ⎤⎥⎦