Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 5/40 and 42/45

5/40 + 42/45 is 127/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 45 is 360
  2. For the 1st fraction, since 40 × 9 = 360,
    5/40 = 5 × 9/40 × 9 = 45/360
  3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
    42/45 = 42 × 8/45 × 8 = 336/360
  4. Add the two fractions:
    45/360 + 336/360 = 45 + 336/360 = 381/360
  5. After reducing the fraction, the answer is 127/120
  6. In mixed form: 17/120

MathStep (Works offline)

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

Related:

© everydaycalculation.com