Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 42/45 and 12/54

42/45 + 12/54 is 52/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 54 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 45 × 6 = 270,
    42/45 = 42 × 6/45 × 6 = 252/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    12/54 = 12 × 5/54 × 5 = 60/270
  4. Add the two like fractions:
    252/270 + 60/270 = 252 + 60/270 = 312/270
  5. 312/270 simplified gives 52/45
  6. So, 42/45 + 12/54 = 52/45
    In mixed form: 17/45

MathStep (Works offline)

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

Related:

© everydaycalculation.com