Compare 42/8 and 21/7
1st number: 5 2/8, 2nd number: 3 0/7
42/8 is greater than 21/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
42/8 = 42 × 7/8 × 7 = 294/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
21/7 = 21 × 8/7 × 8 = 168/56 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 294/56 > 168/56 or 42/8 > 21/7
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