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Subtract 70/28 from 20/15

1st number: 1 5/15, 2nd number: 2 14/28

20/15 - 70/28 is -7/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 28 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 15 × 28 = 420,
    20/15 = 20 × 28/15 × 28 = 560/420
  3. Likewise, for the 2nd fraction, since 28 × 15 = 420,
    70/28 = 70 × 15/28 × 15 = 1050/420
  4. Subtract the two like fractions:
    560/420 - 1050/420 = 560 - 1050/420 = -490/420
  5. After reducing the fraction, the answer is -7/6

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