Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 30/27 and 21/70

1st number: 1 3/27, 2nd number: 21/70

30/27 + 21/70 is 127/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 70 is 1890
  2. For the 1st fraction, since 27 × 70 = 1890,
    30/27 = 30 × 70/27 × 70 = 2100/1890
  3. Likewise, for the 2nd fraction, since 70 × 27 = 1890,
    21/70 = 21 × 27/70 × 27 = 567/1890
  4. Add the two fractions:
    2100/1890 + 567/1890 = 2100 + 567/1890 = 2667/1890
  5. After reducing the fraction, the answer is 127/90
  6. In mixed form: 137/90

MathStep (Works offline)

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

Related:

© everydaycalculation.com