Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 25/16 and 42/81

1st number: 1 9/16, 2nd number: 42/81

25/16 + 42/81 is 899/432.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 81 is 1296

    Next, find the equivalent fraction of both fractional numbers with denominator 1296
  2. For the 1st fraction, since 16 × 81 = 1296,
    25/16 = 25 × 81/16 × 81 = 2025/1296
  3. Likewise, for the 2nd fraction, since 81 × 16 = 1296,
    42/81 = 42 × 16/81 × 16 = 672/1296
  4. Add the two like fractions:
    2025/1296 + 672/1296 = 2025 + 672/1296 = 2697/1296
  5. 2697/1296 simplified gives 899/432
  6. So, 25/16 + 42/81 = 899/432
    In mixed form: 235/432

MathStep (Works offline)

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

Related:

© everydaycalculation.com