Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 2/35 from 42/20

1st number: 2 2/20, 2nd number: 2/35

42/20 - 2/35 is 143/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 35 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    42/20 = 42 × 7/20 × 7 = 294/140
  3. Likewise, for the 2nd fraction, since 35 × 4 = 140,
    2/35 = 2 × 4/35 × 4 = 8/140
  4. Subtract the two like fractions:
    294/140 - 8/140 = 294 - 8/140 = 286/140
  5. After reducing the fraction, the answer is 143/70
  6. In mixed form: 23/70

MathStep (Works offline)

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

Related:

© everydaycalculation.com