Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 40/90 and 63/16

1st number: 40/90, 2nd number: 3 15/16

40/90 + 63/16 is 631/144.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 16 is 720
  2. For the 1st fraction, since 90 × 8 = 720,
    40/90 = 40 × 8/90 × 8 = 320/720
  3. Likewise, for the 2nd fraction, since 16 × 45 = 720,
    63/16 = 63 × 45/16 × 45 = 2835/720
  4. Add the two fractions:
    320/720 + 2835/720 = 320 + 2835/720 = 3155/720
  5. 3155/720 simplified gives 631/144
  6. So, 40/90 + 63/16 = 631/144
    In mixed form: 455/144

MathStep (Works offline)

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

Related:

© everydaycalculation.com