Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 45/40 and 12/63

1st number: 1 5/40, 2nd number: 12/63

45/40 + 12/63 is 221/168.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 63 is 2520

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 40 × 63 = 2520,
    45/40 = 45 × 63/40 × 63 = 2835/2520
  3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
    12/63 = 12 × 40/63 × 40 = 480/2520
  4. Add the two like fractions:
    2835/2520 + 480/2520 = 2835 + 480/2520 = 3315/2520
  5. 3315/2520 simplified gives 221/168
  6. So, 45/40 + 12/63 = 221/168
    In mixed form: 153/168

MathStep (Works offline)

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

Related:

© everydaycalculation.com