Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 7/30 from 70/45

1st number: 1 25/45, 2nd number: 7/30

70/45 - 7/30 is 119/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 30 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 45 × 2 = 90,
    70/45 = 70 × 2/45 × 2 = 140/90
  3. Likewise, for the 2nd fraction, since 30 × 3 = 90,
    7/30 = 7 × 3/30 × 3 = 21/90
  4. Subtract the two like fractions:
    140/90 - 21/90 = 140 - 21/90 = 119/90
  5. In mixed form: 129/90

MathStep (Works offline)

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

Related:

© everydaycalculation.com