15, 11, 28, 111 With Only Two's

Activities

Obtain unity using all ten digits.
Represent unity as the sum of two fractions:

Solution

148/296 + 35/70 = 1

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Source: Numeracy Counts !, Anita Rampal, R Ramanujam and L S Saraswati, N L R C, LBS National Academy of Administration, Mussoorie.