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Subtract 3/80 from 45/21

1st number: 2 3/21, 2nd number: 3/80

45/21 - 3/80 is 1179/560.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 80 is 1680

    Next, find the equivalent fraction of both fractional numbers with denominator 1680
  2. For the 1st fraction, since 21 × 80 = 1680,
    45/21 = 45 × 80/21 × 80 = 3600/1680
  3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
    3/80 = 3 × 21/80 × 21 = 63/1680
  4. Subtract the two like fractions:
    3600/1680 - 63/1680 = 3600 - 63/1680 = 3537/1680
  5. After reducing the fraction, the answer is 1179/560
  6. In mixed form: 259/560

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