Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 7/9 from 30/42

30/42 - 7/9 is -4/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 9 is 126
  2. For the 1st fraction, since 42 × 3 = 126,
    30/42 = 30 × 3/42 × 3 = 90/126
  3. Likewise, for the 2nd fraction, since 9 × 14 = 126,
    7/9 = 7 × 14/9 × 14 = 98/126
  4. Subtract the two fractions:
    90/126 - 98/126 = 90 - 98/126 = -8/126
  5. After reducing the fraction, the answer is -4/63

Related:

Use fraction calculator with our all-in-one calculator app: Download for Android, Download for iOS

© everydaycalculation.com