Compare 40/63 and 15/30
40/63 is greater than 15/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 30 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
40/63 = 40 × 10/63 × 10 = 400/630 - Likewise, for the 2nd fraction, since 30 × 21 = 630,
15/30 = 15 × 21/30 × 21 = 315/630 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 400/630 > 315/630 or 40/63 > 15/30
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