Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 7/70 from 42/8

1st number: 5 2/8, 2nd number: 7/70

42/8 - 7/70 is 103/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 70 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 8 × 35 = 280,
    42/8 = 42 × 35/8 × 35 = 1470/280
  3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
    7/70 = 7 × 4/70 × 4 = 28/280
  4. Subtract the two like fractions:
    1470/280 - 28/280 = 1470 - 28/280 = 1442/280
  5. After reducing the fraction, the answer is 103/20
  6. In mixed form: 53/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com