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Subtract 7/10 from 20/15

1st number: 1 5/15, 2nd number: 7/10

20/15 - 7/10 is 19/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 10 is 30
  2. For the 1st fraction, since 15 × 2 = 30,
    20/15 = 20 × 2/15 × 2 = 40/30
  3. Likewise, for the 2nd fraction, since 10 × 3 = 30,
    7/10 = 7 × 3/10 × 3 = 21/30
  4. Subtract the two fractions:
    40/30 - 21/30 = 40 - 21/30 = 19/30

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