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Subtract 84/40 from 84/30

1st number: 2 24/30, 2nd number: 2 4/40

84/30 - 84/40 is 7/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 40 is 120
  2. For the 1st fraction, since 30 × 4 = 120,
    84/30 = 84 × 4/30 × 4 = 336/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    84/40 = 84 × 3/40 × 3 = 252/120
  4. Subtract the two fractions:
    336/120 - 252/120 = 336 - 252/120 = 84/120
  5. After reducing the fraction, the answer is 7/10

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