Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 70/45 from 21/98

1st number: 21/98, 2nd number: 1 25/45

21/98 - 70/45 is -169/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 45 is 4410

    Next, find the equivalent fraction of both fractional numbers with denominator 4410
  2. For the 1st fraction, since 98 × 45 = 4410,
    21/98 = 21 × 45/98 × 45 = 945/4410
  3. Likewise, for the 2nd fraction, since 45 × 98 = 4410,
    70/45 = 70 × 98/45 × 98 = 6860/4410
  4. Subtract the two like fractions:
    945/4410 - 6860/4410 = 945 - 6860/4410 = -5915/4410
  5. After reducing the fraction, the answer is -169/126

MathStep (Works offline)

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

Related:

© everydaycalculation.com