Błagam pomóżcie!
a)1/2 + (-3/4) + (-5/8)
b)16 4/5 + (-4,8) + 3 1/5 + (-4 1/5)
c)2,2 + 12/7 + (-1,2) + (-1 5/7)
d)6 1/2 + (-3,25) + (-1 3/4) + 1
e)-3,9 + 5/8 + (-0,1) + 0,375
f)28 - 39 + (-14) -(-12) - 81
g)37 + (-18) -(-(-48)) + (-9)
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a)1/2 + (-3/4) + (-5/8)=1/2-3/4-5/8= 4/8-6/8-5/8=-7/8
b)16 4/5 + (-4,8) + 3 1/5 + (-4 1/5)= 16,8-4,8+3,2-4,2= 11
c)2,2 + 12/7 + (-1,2) + (-1 5/7)= 22/10+12/7-12/10-15/7= 10/10 - 3/7= 1- 3/7=4/7
d)6 1/2 + (-3,25) + (-1 3/4) + 1 =6,5-3,25-1,75+1= 2,5
e)-3,9 + 5/8 + (-0,1) + 0,375 = -3,9+ 0,625-0,1+0,375 = -3
f)28 - 39 + (-14) -(-12) - 81 = 28-39-14+12-81= -94
g)37 + (-18) -(-(-48)) + (-9)= 37-18-48-9=-38