Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 1/7 from 30/9

1st number: 3 3/9, 2nd number: 1/7

30/9 - 1/7 is 67/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 7 is 63

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 9 × 7 = 63,
    30/9 = 30 × 7/9 × 7 = 210/63
  3. Likewise, for the 2nd fraction, since 7 × 9 = 63,
    1/7 = 1 × 9/7 × 9 = 9/63
  4. Subtract the two like fractions:
    210/63 - 9/63 = 210 - 9/63 = 201/63
  5. After reducing the fraction, the answer is 67/21
  6. In mixed form: 34/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com