let 1+2+4+8+...... =s
s= 1+2(1+2+4+8+........)
s=1+2s
s=-1
but sum of infinite terms cannot be -1
so, what's the answer
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1 and 7/8 + 2 and 3/8 = 4 and 1/4
1 and 2/4 + 3/4 = 2 and 1/4
7/8 1/2 + 1/4 + 1/8 = 4/8 + 2/8 + 1/8 = 7/8
32
1+2+3+4+5+6+7+8+9=37