Factor 8 2/5-6 4/5

Math
825-645
Convert 825 to an improper fraction.
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A mixed number is an addition of its whole and fractional parts.
8+25-645
Add 8 and 25.
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To write 8 as a fraction with a common denominator, multiply by 55.
8⋅55+25-645
Combine 8 and 55.
8⋅55+25-645
Combine the numerators over the common denominator.
8⋅5+25-645
Simplify the numerator.
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Multiply 8 by 5.
40+25-645
Add 40 and 2.
425-645
425-645
425-645
425-645
Convert 645 to an improper fraction.
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A mixed number is an addition of its whole and fractional parts.
425-(6+45)
Add 6 and 45.
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To write 6 as a fraction with a common denominator, multiply by 55.
425-(6⋅55+45)
Combine 6 and 55.
425-(6⋅55+45)
Combine the numerators over the common denominator.
425-6⋅5+45
Simplify the numerator.
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Multiply 6 by 5.
425-30+45
Add 30 and 4.
425-345
425-345
425-345
425-345
Combine the numerators over the common denominator.
42-345
Subtract 34 from 42.
85
Factor 8 2/5-6 4/5

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