Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 70/40 and 21/75

1st number: 1 30/40, 2nd number: 21/75

70/40 + 21/75 is 203/100.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 75 is 600

    Next, find the equivalent fraction of both fractional numbers with denominator 600
  2. For the 1st fraction, since 40 × 15 = 600,
    70/40 = 70 × 15/40 × 15 = 1050/600
  3. Likewise, for the 2nd fraction, since 75 × 8 = 600,
    21/75 = 21 × 8/75 × 8 = 168/600
  4. Add the two like fractions:
    1050/600 + 168/600 = 1050 + 168/600 = 1218/600
  5. 1218/600 simplified gives 203/100
  6. So, 70/40 + 21/75 = 203/100
    In mixed form: 23/100

MathStep (Works offline)

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

Related:

© everydaycalculation.com