Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 12/7 and 2/40

1st number: 1 5/7, 2nd number: 2/40

12/7 + 2/40 is 247/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 40 is 280
  2. For the 1st fraction, since 7 × 40 = 280,
    12/7 = 12 × 40/7 × 40 = 480/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    2/40 = 2 × 7/40 × 7 = 14/280
  4. Add the two fractions:
    480/280 + 14/280 = 480 + 14/280 = 494/280
  5. 494/280 simplified gives 247/140
  6. So, 12/7 + 2/40 = 247/140
    In mixed form: 1107/140

MathStep (Works offline)

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

Related:

© everydaycalculation.com