Subtract 2/5-3/4

Math
25-34
To write 25 as a fraction with a common denominator, multiply by 44.
25⋅44-34
To write -34 as a fraction with a common denominator, multiply by 55.
25⋅44-34⋅55
Write each expression with a common denominator of 20, by multiplying each by an appropriate factor of 1.
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Multiply 25 and 44.
2⋅45⋅4-34⋅55
Multiply 5 by 4.
2⋅420-34⋅55
Multiply 34 and 55.
2⋅420-3⋅54⋅5
Multiply 4 by 5.
2⋅420-3⋅520
2⋅420-3⋅520
Combine the numerators over the common denominator.
2⋅4-3⋅520
Simplify the numerator.
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Multiply 2 by 4.
8-3⋅520
Multiply -3 by 5.
8-1520
Subtract 15 from 8.
-720
-720
Move the negative in front of the fraction.
-720
The result can be shown in multiple forms.
Exact Form:
-720
Decimal Form:
-0.35
Subtract 2/5-3/4

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