Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 40/15 and 42/63

1st number: 2 10/15, 2nd number: 42/63

40/15 + 42/63 is 10/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 63 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 15 × 21 = 315,
    40/15 = 40 × 21/15 × 21 = 840/315
  3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
    42/63 = 42 × 5/63 × 5 = 210/315
  4. Add the two like fractions:
    840/315 + 210/315 = 840 + 210/315 = 1050/315
  5. 1050/315 simplified gives 10/3
  6. So, 40/15 + 42/63 = 10/3
    In mixed form: 31/3

MathStep (Works offline)

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

Related:

© everydaycalculation.com