Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 3/40 and 7/63

3/40 + 7/63 is 67/360.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 63 is 2520
  2. For the 1st fraction, since 40 × 63 = 2520,
    3/40 = 3 × 63/40 × 63 = 189/2520
  3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
    7/63 = 7 × 40/63 × 40 = 280/2520
  4. Add the two fractions:
    189/2520 + 280/2520 = 189 + 280/2520 = 469/2520
  5. After reducing the fraction, the answer is 67/360

MathStep (Works offline)

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

Related:

© everydaycalculation.com