Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 70/90 and 90/40

1st number: 70/90, 2nd number: 2 10/40

70/90 + 90/40 is 109/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 40 is 360
  2. For the 1st fraction, since 90 × 4 = 360,
    70/90 = 70 × 4/90 × 4 = 280/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    90/40 = 90 × 9/40 × 9 = 810/360
  4. Add the two fractions:
    280/360 + 810/360 = 280 + 810/360 = 1090/360
  5. 1090/360 simplified gives 109/36
  6. So, 70/90 + 90/40 = 109/36
    In mixed form: 31/36

MathStep (Works offline)

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

Related:

© everydaycalculation.com