Răspuns
Explicație pas cu pas:
5 / 6 = 4 / 6 + 1 / 6 = 2 / 6 + 3 / 6 = 3 / 6 + 2 / 6 → suma de fractii cu acelasi numitor
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37 / 54 = 12 / 54 + 25 / 54
37 / 54 = 30 / 54 + 7 / 54
37 / 54 = 20 / 54 + 17 / 54
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109 / 324 = 100 / 324 + 9 / 324
109 / 324 = 49 / 324 + 60 / 324
109 / 324 = 90 / 324 + 19 / 324
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d) diferenta
5 / 6 = 10 / 6 - 5 / 6
5 / 6 = 15 / 6 - 10 / 6
5 / 6 = 23 / 6 - 18 / 6
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37 / 54 = 40 / 54 - 3 / 54
37 / 54 = 64 / 54 - 27 / 54
37 / 54 = 80 / 54 - 43 / 54
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109 / 324 = 201 / 324 - 92 / 324
109 / 324 = 508 / 324 - 399 / 324
109 / 324 = 405 / 324 - 296 /324