Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/80 and 20/63

1st number: 1 10/80, 2nd number: 20/63

90/80 + 20/63 is 727/504.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 63 is 5040
  2. For the 1st fraction, since 80 × 63 = 5040,
    90/80 = 90 × 63/80 × 63 = 5670/5040
  3. Likewise, for the 2nd fraction, since 63 × 80 = 5040,
    20/63 = 20 × 80/63 × 80 = 1600/5040
  4. Add the two fractions:
    5670/5040 + 1600/5040 = 5670 + 1600/5040 = 7270/5040
  5. 7270/5040 simplified gives 727/504
  6. So, 90/80 + 20/63 = 727/504
    In mixed form: 1223/504

MathStep (Works offline)

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

Related:

© everydaycalculation.com