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Subtract 21/16 from 70/50

1st number: 1 20/50, 2nd number: 1 5/16

70/50 - 21/16 is 7/80.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 16 is 400

    Next, find the equivalent fraction of both fractional numbers with denominator 400
  2. For the 1st fraction, since 50 × 8 = 400,
    70/50 = 70 × 8/50 × 8 = 560/400
  3. Likewise, for the 2nd fraction, since 16 × 25 = 400,
    21/16 = 21 × 25/16 × 25 = 525/400
  4. Subtract the two like fractions:
    560/400 - 525/400 = 560 - 525/400 = 35/400
  5. After reducing the fraction, the answer is 7/80

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