Compare 28/90 and 4/5
28/90 is smaller than 4/5
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
28/90 = 28 × 1/90 × 1 = 28/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
4/5 = 4 × 18/5 × 18 = 72/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 28/90 < 72/90 or 28/90 < 4/5
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