Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 48/20 from 12/70

1st number: 12/70, 2nd number: 2 8/20

12/70 - 48/20 is -78/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 70 × 2 = 140,
    12/70 = 12 × 2/70 × 2 = 24/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    48/20 = 48 × 7/20 × 7 = 336/140
  4. Subtract the two like fractions:
    24/140 - 336/140 = 24 - 336/140 = -312/140
  5. After reducing the fraction, the answer is -78/35

MathStep (Works offline)

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

Related:

© everydaycalculation.com