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Earlier discussion
1 older comment kept for context.
Oladeinde Tomiwa
Find the LCM of the 4 fractions so as to get equal fractions
= 2/3, 4/7, 5/9, 1/4
= 168, 144, 140, 63/252
= 2/3, 4/7, 5/9, 1/4 is the answer