Răspuns:
Explicație pas cu pas:
a = 13/32 şi b = 9/32
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a + b = 13/32 + 9/32 = ( 13+9)/32 = 22/32
(22/32)⁽² = (22:2)/(32:2) = 11/16
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a - b = 13/32 - 9/32 = ( 13-9)/32 = 4/32
(4/32)⁽⁴ = (4:4)/(32:4) = 1/8 = 0,125
