Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 70/27 from 42/63

1st number: 42/63, 2nd number: 2 16/27

42/63 - 70/27 is -52/27.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 27 is 189
  2. For the 1st fraction, since 63 × 3 = 189,
    42/63 = 42 × 3/63 × 3 = 126/189
  3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
    70/27 = 70 × 7/27 × 7 = 490/189
  4. Subtract the two fractions:
    126/189 - 490/189 = 126 - 490/189 = -364/189
  5. After reducing the fraction, the answer is -52/27

MathStep (Works offline)

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

Related:

© everydaycalculation.com