Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/70 and 90/64

1st number: 21/70, 2nd number: 1 26/64

21/70 + 90/64 is 273/160.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 64 is 2240

    Next, find the equivalent fraction of both fractional numbers with denominator 2240
  2. For the 1st fraction, since 70 × 32 = 2240,
    21/70 = 21 × 32/70 × 32 = 672/2240
  3. Likewise, for the 2nd fraction, since 64 × 35 = 2240,
    90/64 = 90 × 35/64 × 35 = 3150/2240
  4. Add the two like fractions:
    672/2240 + 3150/2240 = 672 + 3150/2240 = 3822/2240
  5. 3822/2240 simplified gives 273/160
  6. So, 21/70 + 90/64 = 273/160
    In mixed form: 1113/160

MathStep (Works offline)

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

Related:

© everydaycalculation.com