Compare 63/70 and 20/40
63/70 is greater than 20/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
63/70 = 63 × 4/70 × 4 = 252/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
20/40 = 20 × 7/40 × 7 = 140/280 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 252/280 > 140/280 or 63/70 > 20/40
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