Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 50/49 from 18/30

1st number: 18/30, 2nd number: 1 1/49

18/30 - 50/49 is -103/245.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 49 is 1470
  2. For the 1st fraction, since 30 × 49 = 1470,
    18/30 = 18 × 49/30 × 49 = 882/1470
  3. Likewise, for the 2nd fraction, since 49 × 30 = 1470,
    50/49 = 50 × 30/49 × 30 = 1500/1470
  4. Subtract the two fractions:
    882/1470 - 1500/1470 = 882 - 1500/1470 = -618/1470
  5. After reducing the fraction, the answer is -103/245

MathStep (Works offline)

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

Related:

© everydaycalculation.com