Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 45/8 and 20/90

1st number: 5 5/8, 2nd number: 20/90

45/8 + 20/90 is 421/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 90 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 8 × 45 = 360,
    45/8 = 45 × 45/8 × 45 = 2025/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    20/90 = 20 × 4/90 × 4 = 80/360
  4. Add the two like fractions:
    2025/360 + 80/360 = 2025 + 80/360 = 2105/360
  5. 2105/360 simplified gives 421/72
  6. So, 45/8 + 20/90 = 421/72
    In mixed form: 561/72

MathStep (Works offline)

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

Related:

© everydaycalculation.com