Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 42/7 and 18/10

1st number: 6 0/7, 2nd number: 1 8/10

42/7 + 18/10 is 39/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 10 is 70
  2. For the 1st fraction, since 7 × 10 = 70,
    42/7 = 42 × 10/7 × 10 = 420/70
  3. Likewise, for the 2nd fraction, since 10 × 7 = 70,
    18/10 = 18 × 7/10 × 7 = 126/70
  4. Add the two fractions:
    420/70 + 126/70 = 420 + 126/70 = 546/70
  5. 546/70 simplified gives 39/5
  6. So, 42/7 + 18/10 = 39/5
    In mixed form: 74/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com