Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 7/30 from 42/8

1st number: 5 2/8, 2nd number: 7/30

42/8 - 7/30 is 301/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 30 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 8 × 15 = 120,
    42/8 = 42 × 15/8 × 15 = 630/120
  3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
    7/30 = 7 × 4/30 × 4 = 28/120
  4. Subtract the two like fractions:
    630/120 - 28/120 = 630 - 28/120 = 602/120
  5. After reducing the fraction, the answer is 301/60
  6. In mixed form: 51/60

MathStep (Works offline)

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

Related:

© everydaycalculation.com