Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/8 and 45/7

1st number: 11 2/8, 2nd number: 6 3/7

90/8 + 45/7 is 495/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 7 is 56

    Next, find the equivalent fraction of both fractional numbers with denominator 56
  2. For the 1st fraction, since 8 × 7 = 56,
    90/8 = 90 × 7/8 × 7 = 630/56
  3. Likewise, for the 2nd fraction, since 7 × 8 = 56,
    45/7 = 45 × 8/7 × 8 = 360/56
  4. Add the two like fractions:
    630/56 + 360/56 = 630 + 360/56 = 990/56
  5. 990/56 simplified gives 495/28
  6. So, 90/8 + 45/7 = 495/28
    In mixed form: 1719/28

MathStep (Works offline)

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

Related:

© everydaycalculation.com