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Subtract 1/8 from 45/21

1st number: 2 3/21, 2nd number: 1/8

45/21 - 1/8 is 113/56.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 8 is 168
  2. For the 1st fraction, since 21 × 8 = 168,
    45/21 = 45 × 8/21 × 8 = 360/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    1/8 = 1 × 21/8 × 21 = 21/168
  4. Subtract the two fractions:
    360/168 - 21/168 = 360 - 21/168 = 339/168
  5. After reducing the fraction, the answer is 113/56
  6. In mixed form: 21/56

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