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b) -77 - 2 1/7 = (-9 1/7)
c) -8 + 2 3/7 = - 5 4/7
d) 11 + (-7 1/8) = 2 7/8
e) 8 2/3 - 9 1/6 = 8 4/6 - 9 1/6 = 52/6 - 55/6 = - 3/6
f) - 1,6 + 3,4 - (-1,2) = 1,8 + 1,2 = 3
g) -13,4 - (-1,4) - 2,8 = 12 - 2,8 = 9,2
h) 5,6 + (-3,4) - 1,2 = 5,6 -3,4 - 1,2 = 2,2 - 1,2 = 1
i) -3 1/4 - (- 2 1/2) - (- 2,5) = - 3 1/4 + 2 1/2 + 2 5/10 = - 3 1/4 + 2 2/4 + 2 5/10 = - 13/4 + 10/4 + 25/10 = 15/20 + 50/20 = 65/20
Mam nadzieje, że pomogłam ;)