Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 40/42 and 9/40

40/42 + 9/40 is 989/840.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 40 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 42 × 20 = 840,
    40/42 = 40 × 20/42 × 20 = 800/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    9/40 = 9 × 21/40 × 21 = 189/840
  4. Add the two like fractions:
    800/840 + 189/840 = 800 + 189/840 = 989/840
  5. So, 40/42 + 9/40 = 989/840
    In mixed form: 1149/840

MathStep (Works offline)

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

Related:

© everydaycalculation.com