Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 60/42 and 21/54

1st number: 1 18/42, 2nd number: 21/54

60/42 + 21/54 is 229/126.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 54 is 378
  2. For the 1st fraction, since 42 × 9 = 378,
    60/42 = 60 × 9/42 × 9 = 540/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    21/54 = 21 × 7/54 × 7 = 147/378
  4. Add the two fractions:
    540/378 + 147/378 = 540 + 147/378 = 687/378
  5. 687/378 simplified gives 229/126
  6. So, 60/42 + 21/54 = 229/126
    In mixed form: 1103/126

MathStep (Works offline)

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

Related:

© everydaycalculation.com