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Subtract 56/45 from 50/21

1st number: 2 8/21, 2nd number: 1 11/45

50/21 - 56/45 is 358/315.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 45 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 21 × 15 = 315,
    50/21 = 50 × 15/21 × 15 = 750/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    56/45 = 56 × 7/45 × 7 = 392/315
  4. Subtract the two like fractions:
    750/315 - 392/315 = 750 - 392/315 = 358/315
  5. In mixed form: 143/315

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