Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 98/80 from 84/90

1st number: 84/90, 2nd number: 1 18/80

84/90 - 98/80 is -7/24.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 90 × 8 = 720,
    84/90 = 84 × 8/90 × 8 = 672/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    98/80 = 98 × 9/80 × 9 = 882/720
  4. Subtract the two like fractions:
    672/720 - 882/720 = 672 - 882/720 = -210/720
  5. After reducing the fraction, the answer is -7/24

MathStep (Works offline)

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

Related:

© everydaycalculation.com