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Subtract 1/30 from 42/40

1st number: 1 2/40, 2nd number: 1/30

42/40 - 1/30 is 61/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 30 is 120
  2. For the 1st fraction, since 40 × 3 = 120,
    42/40 = 42 × 3/40 × 3 = 126/120
  3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
    1/30 = 1 × 4/30 × 4 = 4/120
  4. Subtract the two fractions:
    126/120 - 4/120 = 126 - 4/120 = 122/120
  5. After reducing the fraction, the answer is 61/60
  6. In mixed form: 11/60

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