Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 90/6 from 42/45

1st number: 42/45, 2nd number: 15 0/6

42/45 - 90/6 is -211/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 6 is 90
  2. For the 1st fraction, since 45 × 2 = 90,
    42/45 = 42 × 2/45 × 2 = 84/90
  3. Likewise, for the 2nd fraction, since 6 × 15 = 90,
    90/6 = 90 × 15/6 × 15 = 1350/90
  4. Subtract the two fractions:
    84/90 - 1350/90 = 84 - 1350/90 = -1266/90
  5. After reducing the fraction, the answer is -211/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com