MCOW#2

The following are 2 questions taken from MCOW #2 (out of 3)

Question 2 : Express 1/110 as the difference of 2  consecutive unit fractions (unit fractions are fractions whose numerators are 1)

So, the answer is 1/10-1/11

Solution: Find out the factors of 110

1×110, 2×55, 5×22, 10×11

Question 3 : Find the sum of the ff.

1/1×2+1/2×3+….+1/8×9+1/9×10

Answer is 9/10

Solution: 1/1×2+1/2×3=2/3. So, take the denominator of the last fraction, and make the first the numerator and the second, the denominator.