Compare 15/98 and 42/72
15/98 is smaller than 42/72
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 72 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 98 × 36 = 3528,
15/98 = 15 × 36/98 × 36 = 540/3528 - Likewise, for the 2nd fraction, since 72 × 49 = 3528,
42/72 = 42 × 49/72 × 49 = 2058/3528 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 540/3528 < 2058/3528 or 15/98 < 42/72
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