Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 30/21 and 70/35

1st number: 1 9/21, 2nd number: 2 0/35

30/21 + 70/35 is 24/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 35 is 105
  2. For the 1st fraction, since 21 × 5 = 105,
    30/21 = 30 × 5/21 × 5 = 150/105
  3. Likewise, for the 2nd fraction, since 35 × 3 = 105,
    70/35 = 70 × 3/35 × 3 = 210/105
  4. Add the two fractions:
    150/105 + 210/105 = 150 + 210/105 = 360/105
  5. After reducing the fraction, the answer is 24/7
  6. In mixed form: 33/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com