Compare 70/42 and 21/15
1st number: 1 28/42, 2nd number: 1 6/15
70/42 is greater than 21/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
70/42 = 70 × 5/42 × 5 = 350/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
21/15 = 21 × 14/15 × 14 = 294/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 350/210 > 294/210 or 70/42 > 21/15
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