Răspuns:
Explicație pas cu pas:
2 3/8 = 19/8
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19/8 - x = 5/16
x = 19/8 - 5/16 = 38/16 - 5/16 = 33/16
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19/8 - x = 11/12
x = 19/8 - 11/12 = 57/24 - 22/24 = 35/24
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19/8 - x = 39/20
x = 19/8 - 39/20 = 95/40 - 78/40 = 17/40