Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 42/80 from 70/35

1st number: 2 0/35, 2nd number: 42/80

70/35 - 42/80 is 59/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 80 is 560

    Next, find the equivalent fraction of both fractional numbers with denominator 560
  2. For the 1st fraction, since 35 × 16 = 560,
    70/35 = 70 × 16/35 × 16 = 1120/560
  3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
    42/80 = 42 × 7/80 × 7 = 294/560
  4. Subtract the two like fractions:
    1120/560 - 294/560 = 1120 - 294/560 = 826/560
  5. After reducing the fraction, the answer is 59/40
  6. In mixed form: 119/40

MathStep (Works offline)

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

Related:

© everydaycalculation.com