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Subtract 60/4 from 21/30

1st number: 21/30, 2nd number: 15 0/4

21/30 - 60/4 is -143/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 4 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 30 × 2 = 60,
    21/30 = 21 × 2/30 × 2 = 42/60
  3. Likewise, for the 2nd fraction, since 4 × 15 = 60,
    60/4 = 60 × 15/4 × 15 = 900/60
  4. Subtract the two like fractions:
    42/60 - 900/60 = 42 - 900/60 = -858/60
  5. After reducing the fraction, the answer is -143/10

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