Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 10/8 and 21/45

1st number: 1 2/8, 2nd number: 21/45

10/8 + 21/45 is 103/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 45 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 8 × 45 = 360,
    10/8 = 10 × 45/8 × 45 = 450/360
  3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
    21/45 = 21 × 8/45 × 8 = 168/360
  4. Add the two like fractions:
    450/360 + 168/360 = 450 + 168/360 = 618/360
  5. 618/360 simplified gives 103/60
  6. So, 10/8 + 21/45 = 103/60
    In mixed form: 143/60

MathStep (Works offline)

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

Related:

© everydaycalculation.com