Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 72/40 from 4/70

1st number: 4/70, 2nd number: 1 32/40

4/70 - 72/40 is -61/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 40 is 280
  2. For the 1st fraction, since 70 × 4 = 280,
    4/70 = 4 × 4/70 × 4 = 16/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    72/40 = 72 × 7/40 × 7 = 504/280
  4. Subtract the two fractions:
    16/280 - 504/280 = 16 - 504/280 = -488/280
  5. After reducing the fraction, the answer is -61/35

MathStep (Works offline)

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

Related:

© everydaycalculation.com