Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 40/45 and 90/7

1st number: 40/45, 2nd number: 12 6/7

40/45 + 90/7 is 866/63.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 45 × 7 = 315,
    40/45 = 40 × 7/45 × 7 = 280/315
  3. Likewise, for the 2nd fraction, since 7 × 45 = 315,
    90/7 = 90 × 45/7 × 45 = 4050/315
  4. Add the two like fractions:
    280/315 + 4050/315 = 280 + 4050/315 = 4330/315
  5. 4330/315 simplified gives 866/63
  6. So, 40/45 + 90/7 = 866/63
    In mixed form: 1347/63

MathStep (Works offline)

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

Related:

© everydaycalculation.com