Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/42 and 70/8

1st number: 2 6/42, 2nd number: 8 6/8

90/42 + 70/8 is 305/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 8 is 168
  2. For the 1st fraction, since 42 × 4 = 168,
    90/42 = 90 × 4/42 × 4 = 360/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    70/8 = 70 × 21/8 × 21 = 1470/168
  4. Add the two fractions:
    360/168 + 1470/168 = 360 + 1470/168 = 1830/168
  5. 1830/168 simplified gives 305/28
  6. So, 90/42 + 70/8 = 305/28
    In mixed form: 1025/28

MathStep (Works offline)

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

Related:

© everydaycalculation.com