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Subtract 10/21 from 45/10

1st number: 4 5/10, 2nd number: 10/21

45/10 - 10/21 is 169/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 21 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 10 × 21 = 210,
    45/10 = 45 × 21/10 × 21 = 945/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    10/21 = 10 × 10/21 × 10 = 100/210
  4. Subtract the two like fractions:
    945/210 - 100/210 = 945 - 100/210 = 845/210
  5. After reducing the fraction, the answer is 169/42
  6. In mixed form: 41/42

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