Compare 7/8 and 3/9
78 is greater than 39
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
78 = 7 × 98 × 9 = 6372 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
39 = 3 × 89 × 8 = 2472 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 6372 > 2472 or 78 > 39
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