Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 27/42 and 70/40

1st number: 27/42, 2nd number: 1 30/40

27/42 + 70/40 is 67/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 40 is 840
  2. For the 1st fraction, since 42 × 20 = 840,
    27/42 = 27 × 20/42 × 20 = 540/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    70/40 = 70 × 21/40 × 21 = 1470/840
  4. Add the two fractions:
    540/840 + 1470/840 = 540 + 1470/840 = 2010/840
  5. After reducing the fraction, the answer is 67/28
  6. In mixed form: 211/28

MathStep (Works offline)

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

Related:

© everydaycalculation.com