Answer:
47 7/12
Step-by-step explanation:
Here we have two mixed numbers and need to find the difference between them. In other words, subtract 78 2/3 from 126 1/4.
The LCD is (3)(4), or 12. Thus we have:
126 3/12
-78 8/12
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Borrow 1 (or 12/12) from 126. We get:
125 15/12, from which it is easily possible to subtract 78 8/12:
125 15/12
- 78 8/12
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47 7/12
