=1+1/10+2+1/40+3+1/88+.+9+1/754+10+1/928
=(1+2+3+.+10)+(1/10+1/40+1/88+.+1/754+1/928)
=55+(1/2×5+1/5×8+1/8×11+.+1/26×29+1/29×32)
=55+1/3(1/2-1/5+1/5-1/8+1/8-1/11+.+1/26-1/29+1/29-1/32)
=55+1/3(1/2-1/32)
=55+1/3×15/32
=55又32分之5
=1+1/10+2+1/40+3+1/88+.+9+1/754+10+1/928
=(1+2+3+.+10)+(1/10+1/40+1/88+.+1/754+1/928)
=55+(1/2×5+1/5×8+1/8×11+.+1/26×29+1/29×32)
=55+1/3(1/2-1/5+1/5-1/8+1/8-1/11+.+1/26-1/29+1/29-1/32)
=55+1/3(1/2-1/32)
=55+1/3×15/32
=55又32分之5