Compare 90/42 and 35/80, Which fraction is greater?

Compare 90/42 and 35/80

1^st number: 2 6/42, 2^nd number: 35/80

90/42 is greater than 35/80

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 80 is 1680

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 42 × 40 = 1680,
90/42 = 90 × 40/42 × 40 = 3600/1680
Likewise, for the 2nd fraction, since 80 × 21 = 1680,
35/80 = 35 × 21/80 × 21 = 735/1680
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
3600/1680 > 735/1680 or 90/42 > 35/80

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