Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 15/56 and 20/90

15/56 + 20/90 is 247/504.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 90 is 2520
  2. For the 1st fraction, since 56 × 45 = 2520,
    15/56 = 15 × 45/56 × 45 = 675/2520
  3. Likewise, for the 2nd fraction, since 90 × 28 = 2520,
    20/90 = 20 × 28/90 × 28 = 560/2520
  4. Add the two fractions:
    675/2520 + 560/2520 = 675 + 560/2520 = 1235/2520
  5. After reducing the fraction, the answer is 247/504

Related:

Use fraction calculator with our all-in-one calculator app: Download for Android, Download for iOS

© everydaycalculation.com