Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 81/4 and 45/35

1st number: 20 1/4, 2nd number: 1 10/35

81/4 + 45/35 is 603/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 35 is 140
  2. For the 1st fraction, since 4 × 35 = 140,
    81/4 = 81 × 35/4 × 35 = 2835/140
  3. Likewise, for the 2nd fraction, since 35 × 4 = 140,
    45/35 = 45 × 4/35 × 4 = 180/140
  4. Add the two fractions:
    2835/140 + 180/140 = 2835 + 180/140 = 3015/140
  5. 3015/140 simplified gives 603/28
  6. So, 81/4 + 45/35 = 603/28
    In mixed form: 2115/28

MathStep (Works offline)

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

Related:

© everydaycalculation.com