Răspuns:
Explicație pas cu pas:
a)
2/7 + 3/4 : 7/8 = 2/7 + 3/4*8/7 = 2/7 + 6/7 = 8/7
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b)
-1/8*32/3 - 5/6 : 5/2 = -4/3 - 5/6*2/5 = -4/3 - 1/3 = -5/3
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c)
(-5/12 + 7/8 - 1/24)*(-6/5)^2
= (-10/24 + 21/24 - 1/24)*36/25
= 10/24*36/25 = 3/5
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d)
(-5/12 + 7/8 - 1/24)^0 *(5/6)^2 = 1*25/36 = 25/36
