Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/7 and 12/45

1st number: 12 6/7, 2nd number: 12/45

90/7 + 12/45 is 1378/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 45 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 7 × 45 = 315,
    90/7 = 90 × 45/7 × 45 = 4050/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    12/45 = 12 × 7/45 × 7 = 84/315
  4. Add the two like fractions:
    4050/315 + 84/315 = 4050 + 84/315 = 4134/315
  5. 4134/315 simplified gives 1378/105
  6. So, 90/7 + 12/45 = 1378/105
    In mixed form: 1313/105

MathStep (Works offline)

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

Related:

© everydaycalculation.com