I disagree with Shannon's answer.
To subtract mixed numbers with unlike denominators, first convert the mixed numbers to improper fractions. Then find a common denominator, subtract the fractions, and simplify if needed.
For example, to subtract 2 3/4 from 5 1/2:
- Convert 2 3/4 to 11/4 and 5 1/2 to 11/2
- Find a common denominator, which is 4
- Subtract the fractions: 11/2 - 11/4 = 22/4 - 11/4 = 11/4
- Convert the result back to a mixed number: 11/4 = 2 3/4
Therefore, 5 1/2 - 2 3/4 = 2 3/4
Shannon states that 758−513=245
because 7−5=2
, 5−1=4
, and 8−3=5
.
First, state whether you agree or disagree. Then, explain briefly how to subtract mixed numbers with unlike denominators. Be sure to show your solution as a subtraction equation. And make it sound simple
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