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Subtract 7/30 from 18/8

1st number: 2 2/8, 2nd number: 7/30

18/8 - 7/30 is 121/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 30 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 8 × 15 = 120,
    18/8 = 18 × 15/8 × 15 = 270/120
  3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
    7/30 = 7 × 4/30 × 4 = 28/120
  4. Subtract the two like fractions:
    270/120 - 28/120 = 270 - 28/120 = 242/120
  5. After reducing the fraction, the answer is 121/60
  6. In mixed form: 21/60

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