Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 72/40 and 1/45

1st number: 1 32/40, 2nd number: 1/45

72/40 + 1/45 is 82/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 45 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 40 × 9 = 360,
    72/40 = 72 × 9/40 × 9 = 648/360
  3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
    1/45 = 1 × 8/45 × 8 = 8/360
  4. Add the two like fractions:
    648/360 + 8/360 = 648 + 8/360 = 656/360
  5. 656/360 simplified gives 82/45
  6. So, 72/40 + 1/45 = 82/45
    In mixed form: 137/45

MathStep (Works offline)

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

Related:

© everydaycalculation.com