Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 42/28 and 90/63

1st number: 1 14/28, 2nd number: 1 27/63

42/28 + 90/63 is 41/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 63 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 28 × 9 = 252,
    42/28 = 42 × 9/28 × 9 = 378/252
  3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
    90/63 = 90 × 4/63 × 4 = 360/252
  4. Add the two like fractions:
    378/252 + 360/252 = 378 + 360/252 = 738/252
  5. 738/252 simplified gives 41/14
  6. So, 42/28 + 90/63 = 41/14
    In mixed form: 213/14

MathStep (Works offline)

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

Related:

© everydaycalculation.com