Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 7/70 and 90/80

1st number: 7/70, 2nd number: 1 10/80

7/70 + 90/80 is 49/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 80 is 560
  2. For the 1st fraction, since 70 × 8 = 560,
    7/70 = 7 × 8/70 × 8 = 56/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    90/80 = 90 × 7/80 × 7 = 630/560
  4. Add the two fractions:
    56/560 + 630/560 = 56 + 630/560 = 686/560
  5. 686/560 simplified gives 49/40
  6. So, 7/70 + 90/80 = 49/40
    In mixed form: 19/40

MathStep (Works offline)

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

Related:

© everydaycalculation.com