Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 70/18 and 45/40

1st number: 3 16/18, 2nd number: 1 5/40

70/18 + 45/40 is 361/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 40 is 360
  2. For the 1st fraction, since 18 × 20 = 360,
    70/18 = 70 × 20/18 × 20 = 1400/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    45/40 = 45 × 9/40 × 9 = 405/360
  4. Add the two fractions:
    1400/360 + 405/360 = 1400 + 405/360 = 1805/360
  5. After reducing the fraction, the answer is 361/72
  6. In mixed form: 51/72

MathStep (Works offline)

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

Related:

© everydaycalculation.com