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3⁄8
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Explanation from diagram. I see that 1⁄4 equals 2 parts and 3⁄8 equals 3 parts; the sum of 3 parts and 2 parts are 5 parts. But the name of the part is eighths; hence the answer 5 parts may be written 5 eighths, or 5⁄8. Thus the final form is
2 parts
+ 3 parts
5 parts = 5⁄8
Give opportunity to consult answers in text books as further verification.
The summary and application of adding fractions according to the “discoverer’s method,” are virtually the same as the corresponding steps in the “school room method.”
Second Illustration of Discoverer’s Method.