Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Compare fractions

Compare 7/30 and 42/40

1st number: 7/30, 2nd number: 1 2/40

7/30 is smaller than 42/40

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 40 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 30 × 4 = 120,
    7/30 = 7 × 4/30 × 4 = 28/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    42/40 = 42 × 3/40 × 3 = 126/120
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 28/120 < 126/120 or 7/30 < 42/40

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

© everydaycalculation.com