Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 42/80 and 54/70

42/80 + 54/70 is 363/280.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 70 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 80 × 7 = 560,
    42/80 = 42 × 7/80 × 7 = 294/560
  3. Likewise, for the 2nd fraction, since 70 × 8 = 560,
    54/70 = 54 × 8/70 × 8 = 432/560
  4. Add the two like fractions:
    294/560 + 432/560 = 294 + 432/560 = 726/560
  5. 726/560 simplified gives 363/280
  6. So, 42/80 + 54/70 = 363/280
    In mixed form: 183/280

MathStep (Works offline)

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

Related:

© everydaycalculation.com