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Subtract 7/20 from 5/4

1st number: 1 1/4, 2nd number: 7/20

5/4 - 7/20 is 9/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 20 is 20
  2. For the 1st fraction, since 4 × 5 = 20,
    5/4 = 5 × 5/4 × 5 = 25/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    7/20 = 7 × 1/20 × 1 = 7/20
  4. Subtract the two fractions:
    25/20 - 7/20 = 25 - 7/20 = 18/20
  5. After reducing the fraction, the answer is 9/10

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